diff --git a/web/public/locales/en/views/settings.json b/web/public/locales/en/views/settings.json
index 06cf9fccf..6e1fe387e 100644
--- a/web/public/locales/en/views/settings.json
+++ b/web/public/locales/en/views/settings.json
@@ -1137,6 +1137,12 @@
       "system": "System",
       "integrations": "Integrations"
     },
+    "additionalProperties": {
+      "keyLabel": "Key",
+      "valueLabel": "Value",
+      "keyPlaceholder": "New key",
+      "remove": "Remove"
+    },
     "sections": {
       "detect": "Detection",
       "record": "Recording",
diff --git a/web/src/components/config-form/theme/frigateTheme.ts b/web/src/components/config-form/theme/frigateTheme.ts
index 61bbea061..225ecd4d9 100644
--- a/web/src/components/config-form/theme/frigateTheme.ts
+++ b/web/src/components/config-form/theme/frigateTheme.ts
@@ -32,6 +32,7 @@ import { DescriptionFieldTemplate } from "./templates/DescriptionFieldTemplate";
 import { TitleFieldTemplate } from "./templates/TitleFieldTemplate";
 import { ErrorListTemplate } from "./templates/ErrorListTemplate";
 import { MultiSchemaFieldTemplate } from "./templates/MultiSchemaFieldTemplate";
+import { WrapIfAdditionalTemplate } from "./templates/WrapIfAdditionalTemplate";
 
 export interface FrigateTheme {
   widgets: RegistryWidgetsType;
@@ -70,6 +71,7 @@ export const frigateTheme: FrigateTheme = {
     TitleFieldTemplate: TitleFieldTemplate,
     ErrorListTemplate: ErrorListTemplate,
     MultiSchemaFieldTemplate: MultiSchemaFieldTemplate,
+    WrapIfAdditionalTemplate: WrapIfAdditionalTemplate,
   },
   fields: {},
 };
diff --git a/web/src/components/config-form/theme/templates/FieldTemplate.tsx b/web/src/components/config-form/theme/templates/FieldTemplate.tsx
index adad4215b..82f14c352 100644
--- a/web/src/components/config-form/theme/templates/FieldTemplate.tsx
+++ b/web/src/components/config-form/theme/templates/FieldTemplate.tsx
@@ -1,5 +1,10 @@
 // Field Template - wraps each form field with label and description
 import type { FieldTemplateProps, StrictRJSFSchema } from "@rjsf/utils";
+import {
+  getTemplate,
+  getUiOptions,
+  ADDITIONAL_PROPERTY_FLAG,
+} from "@rjsf/utils";
 import { Label } from "@/components/ui/label";
 import { cn } from "@/lib/utils";
 import { useTranslation } from "react-i18next";
@@ -51,6 +56,8 @@ export function FieldTemplate(props: FieldTemplateProps) {
     id,
     label,
     children,
+    classNames,
+    style,
     errors,
     help,
     description,
@@ -61,6 +68,13 @@ export function FieldTemplate(props: FieldTemplateProps) {
     uiSchema,
     registry,
     fieldPathId,
+    onKeyRename,
+    onKeyRenameBlur,
+    onRemoveProperty,
+    rawDescription,
+    rawErrors,
+    disabled,
+    readonly,
   } = props;
 
   // Get i18n namespace from form context (passed through registry)
@@ -78,15 +92,16 @@ export function FieldTemplate(props: FieldTemplateProps) {
   }
 
   // Get UI options
-  const uiOptions = uiSchema?.["ui:options"] || {};
+  const uiOptionsFromSchema = uiSchema?.["ui:options"] || {};
 
   // Determine field characteristics
-  const isAdvanced = uiOptions.advanced === true;
+  const isAdvanced = uiOptionsFromSchema.advanced === true;
   const isBoolean =
     schema.type === "boolean" ||
     (Array.isArray(schema.type) && schema.type.includes("boolean"));
   const isObjectField = schema.type === "object";
   const isNullableUnion = isNullableUnionSchema(schema as StrictRJSFSchema);
+  const isAdditionalProperty = ADDITIONAL_PROPERTY_FLAG in schema;
   const suppressMultiSchema =
     (uiSchema?.["ui:options"] as Record<string, unknown> | undefined)
       ?.suppressMultiSchema === true;
@@ -199,60 +214,92 @@ export function FieldTemplate(props: FieldTemplateProps) {
     finalDescription = schemaDescription;
   }
 
-  return (
-    <div
-      className={cn(
-        "space-y-1",
-        isAdvanced && "border-l-2 border-muted pl-4",
-        isBoolean && "flex items-center justify-between gap-4",
-      )}
-      data-field-id={translationPath}
-    >
-      {displayLabel &&
-        finalLabel &&
-        !isBoolean &&
-        !isMultiSchemaWrapper &&
-        !isObjectField && (
-          <Label
-            htmlFor={id}
-            className={cn(
-              "text-sm font-medium",
-              errors && errors.props?.errors?.length > 0 && "text-destructive",
-            )}
-          >
-            {finalLabel}
-            {required && <span className="ml-1 text-destructive">*</span>}
-          </Label>
-        )}
+  const uiOptions = getUiOptions(uiSchema);
+  const WrapIfAdditionalTemplate = getTemplate(
+    "WrapIfAdditionalTemplate",
+    registry,
+    uiOptions,
+  );
 
-      {isBoolean ? (
-        <div className="flex w-full items-center justify-between gap-4">
-          <div className="space-y-0.5">
-            {displayLabel && finalLabel && (
-              <Label htmlFor={id} className="text-sm font-medium">
-                {finalLabel}
-                {required && <span className="ml-1 text-destructive">*</span>}
-              </Label>
-            )}
-            {finalDescription && !isMultiSchemaWrapper && (
+  return (
+    <WrapIfAdditionalTemplate
+      classNames={classNames}
+      style={style}
+      disabled={disabled}
+      id={id}
+      label={label}
+      displayLabel={displayLabel}
+      onKeyRename={onKeyRename}
+      onKeyRenameBlur={onKeyRenameBlur}
+      onRemoveProperty={onRemoveProperty}
+      rawDescription={rawDescription}
+      readonly={readonly}
+      required={required}
+      schema={schema}
+      uiSchema={uiSchema}
+      registry={registry}
+      rawErrors={rawErrors}
+      hideError={false}
+    >
+      <div
+        className={cn(
+          "space-y-1",
+          isAdvanced && "border-l-2 border-muted pl-4",
+          isBoolean && "flex items-center justify-between gap-4",
+        )}
+        data-field-id={translationPath}
+      >
+        {displayLabel &&
+          finalLabel &&
+          !isBoolean &&
+          !isMultiSchemaWrapper &&
+          !isObjectField &&
+          !isAdditionalProperty && (
+            <Label
+              htmlFor={id}
+              className={cn(
+                "text-sm font-medium",
+                errors &&
+                  errors.props?.errors?.length > 0 &&
+                  "text-destructive",
+              )}
+            >
+              {finalLabel}
+              {required && <span className="ml-1 text-destructive">*</span>}
+            </Label>
+          )}
+
+        {isBoolean ? (
+          <div className="flex w-full items-center justify-between gap-4">
+            <div className="space-y-0.5">
+              {displayLabel && finalLabel && (
+                <Label htmlFor={id} className="text-sm font-medium">
+                  {finalLabel}
+                  {required && <span className="ml-1 text-destructive">*</span>}
+                </Label>
+              )}
+              {finalDescription && !isMultiSchemaWrapper && (
+                <p className="text-xs text-muted-foreground">
+                  {finalDescription}
+                </p>
+              )}
+            </div>
+            {children}
+          </div>
+        ) : (
+          <>
+            {children}
+            {finalDescription && !isMultiSchemaWrapper && !isObjectField && (
               <p className="text-xs text-muted-foreground">
                 {finalDescription}
               </p>
             )}
-          </div>
-          {children}
-        </div>
-      ) : (
-        <>
-          {children}
-          {finalDescription && !isMultiSchemaWrapper && !isObjectField && (
-            <p className="text-xs text-muted-foreground">{finalDescription}</p>
-          )}
-        </>
-      )}
+          </>
+        )}
 
-      {errors}
-      {help}
-    </div>
+        {errors}
+        {help}
+      </div>
+    </WrapIfAdditionalTemplate>
   );
 }
diff --git a/web/src/components/config-form/theme/templates/ObjectFieldTemplate.tsx b/web/src/components/config-form/theme/templates/ObjectFieldTemplate.tsx
index 925a11fc4..f15a1a303 100644
--- a/web/src/components/config-form/theme/templates/ObjectFieldTemplate.tsx
+++ b/web/src/components/config-form/theme/templates/ObjectFieldTemplate.tsx
@@ -1,4 +1,5 @@
 // Object Field Template - renders nested object fields with i18n support
+import { canExpand } from "@rjsf/utils";
 import type { ObjectFieldTemplateProps } from "@rjsf/utils";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import {
@@ -8,7 +9,7 @@ import {
 } from "@/components/ui/collapsible";
 import { Button } from "@/components/ui/button";
 import { useState } from "react";
-import { LuChevronDown, LuChevronRight } from "react-icons/lu";
+import { LuChevronDown, LuChevronRight, LuPlus } from "react-icons/lu";
 import { useTranslation } from "react-i18next";
 import { cn } from "@/lib/utils";
 import { getTranslatedLabel } from "@/utils/i18n";
@@ -47,7 +48,18 @@ function getFilterObjectLabel(
 }
 
 export function ObjectFieldTemplate(props: ObjectFieldTemplateProps) {
-  const { title, description, properties, uiSchema, registry, schema } = props;
+  const {
+    title,
+    description,
+    properties,
+    uiSchema,
+    registry,
+    schema,
+    onAddProperty,
+    formData,
+    disabled,
+    readonly,
+  } = props;
   type FormContext = { i18nNamespace?: string };
   const formContext = registry?.formContext as FormContext | undefined;
 
@@ -59,6 +71,7 @@ export function ObjectFieldTemplate(props: ObjectFieldTemplateProps) {
   const { t, i18n } = useTranslation([
     formContext?.i18nNamespace || "common",
     "config/groups",
+    "common",
   ]);
 
   // Extract domain from i18nNamespace (e.g., "config/audio" -> "audio")
@@ -211,11 +224,35 @@ export function ObjectFieldTemplate(props: ObjectFieldTemplateProps) {
     );
   };
 
+  const renderAddButton = () => {
+    const canAdd =
+      Boolean(onAddProperty) && canExpand(schema, uiSchema, formData);
+
+    if (!canAdd) {
+      return null;
+    }
+
+    return (
+      <Button
+        type="button"
+        variant="outline"
+        size="sm"
+        onClick={onAddProperty}
+        disabled={disabled || readonly}
+        className="gap-2"
+      >
+        <LuPlus className="h-4 w-4" />
+        {t("add", { ns: "common", defaultValue: "Add" })}
+      </Button>
+    );
+  };
+
   // Root level renders children directly
   if (isRoot) {
     return (
       <div className="space-y-6">
         {renderGroupedFields(regularProps)}
+        {renderAddButton()}
 
         {advancedProps.length > 0 && (
           <Collapsible open={showAdvanced} onOpenChange={setShowAdvanced}>
@@ -264,6 +301,7 @@ export function ObjectFieldTemplate(props: ObjectFieldTemplateProps) {
         <CollapsibleContent>
           <CardContent className="space-y-4 pt-0">
             {renderGroupedFields(regularProps)}
+            {renderAddButton()}
 
             {advancedProps.length > 0 && (
               <Collapsible open={showAdvanced} onOpenChange={setShowAdvanced}>
diff --git a/web/src/components/config-form/theme/templates/WrapIfAdditionalTemplate.tsx b/web/src/components/config-form/theme/templates/WrapIfAdditionalTemplate.tsx
new file mode 100644
index 000000000..7755643c5
--- /dev/null
+++ b/web/src/components/config-form/theme/templates/WrapIfAdditionalTemplate.tsx
@@ -0,0 +1,99 @@
+import {
+  ADDITIONAL_PROPERTY_FLAG,
+  FormContextType,
+  RJSFSchema,
+  StrictRJSFSchema,
+  WrapIfAdditionalTemplateProps,
+} from "@rjsf/utils";
+import { Input } from "@/components/ui/input";
+import { Button } from "@/components/ui/button";
+import { Label } from "@/components/ui/label";
+import { cn } from "@/lib/utils";
+import { useTranslation } from "react-i18next";
+import { LuTrash2 } from "react-icons/lu";
+
+export function WrapIfAdditionalTemplate<
+  T = unknown,
+  S extends StrictRJSFSchema = RJSFSchema,
+  F extends FormContextType = FormContextType,
+>(props: WrapIfAdditionalTemplateProps<T, S, F>) {
+  const {
+    classNames,
+    style,
+    children,
+    disabled,
+    id,
+    label,
+    displayLabel,
+    onRemoveProperty,
+    onKeyRenameBlur,
+    readonly,
+    required,
+    schema,
+  } = props;
+
+  const { t } = useTranslation(["views/settings"]);
+
+  const additional = ADDITIONAL_PROPERTY_FLAG in schema;
+
+  if (!additional) {
+    return (
+      <div className={classNames} style={style}>
+        {children}
+      </div>
+    );
+  }
+
+  const keyId = `${id}-key`;
+  const keyLabel = t("configForm.additionalProperties.keyLabel", {
+    ns: "views/settings",
+  });
+  const valueLabel = t("configForm.additionalProperties.valueLabel", {
+    ns: "views/settings",
+  });
+  const keyPlaceholder = t("configForm.additionalProperties.keyPlaceholder", {
+    ns: "views/settings",
+  });
+  const removeLabel = t("configForm.additionalProperties.remove", {
+    ns: "views/settings",
+  });
+
+  return (
+    <div
+      className={cn("grid grid-cols-12 items-start gap-2", classNames)}
+      style={style}
+    >
+      <div className="col-span-12 space-y-2 md:col-span-5">
+        {displayLabel && <Label htmlFor={keyId}>{keyLabel}</Label>}
+        <Input
+          id={keyId}
+          name={keyId}
+          required={required}
+          defaultValue={label}
+          placeholder={keyPlaceholder}
+          disabled={disabled || readonly}
+          onBlur={!readonly ? onKeyRenameBlur : undefined}
+        />
+      </div>
+      <div className="col-span-12 space-y-2 md:col-span-6">
+        {displayLabel && <Label htmlFor={id}>{valueLabel}</Label>}
+        <div className="min-w-0">{children}</div>
+      </div>
+      <div className="col-span-12 flex items-center md:col-span-1 md:justify-end">
+        <Button
+          type="button"
+          variant="ghost"
+          size="icon"
+          onClick={onRemoveProperty}
+          disabled={disabled || readonly}
+          aria-label={removeLabel}
+          title={removeLabel}
+        >
+          <LuTrash2 className="h-4 w-4" />
+        </Button>
+      </div>
+    </div>
+  );
+}
+
+export default WrapIfAdditionalTemplate;