diff --git a/frontend/src/lib/common.ts b/frontend/src/lib/common.ts
index 674199643d..fa67280053 100644
--- a/frontend/src/lib/common.ts
+++ b/frontend/src/lib/common.ts
@@ -52,7 +52,7 @@ export interface ModalSchemaProperty {
 	pattern?: string
 	enum_?: string[]
 	default?: any
-	items?: { type?: 'string' | 'number' }
+	items?: { type?: 'string' | 'number'; enum?: string[] }
 	contentEncoding?: 'base64' | 'binary'
 	schema?: Schema
 	customErrorMessage?: string
diff --git a/frontend/src/lib/components/ArgInput.svelte b/frontend/src/lib/components/ArgInput.svelte
index 6082e597ff..4a4a533837 100644
--- a/frontend/src/lib/components/ArgInput.svelte
+++ b/frontend/src/lib/components/ArgInput.svelte
@@ -237,7 +237,7 @@
 			{#if type == 'array'}
 				<ArrayTypeNarrowing bind:itemsType />
 				<Label label="Display using multiselect">
-					<Toggle bind:checked={extra.multiselect} />
+					<Toggle disabled={itemsType?.enum == undefined} bind:checked={extra.multiselect} />
 				</Label>
 			{:else if (type == 'string' && format != 'date-time') || ['number', 'object'].includes(type ?? '')}
 				<div class="p-2 my-1 text-xs border-solid border border-gray-200 rounded-lg">
diff --git a/frontend/src/lib/components/SchemaModal.svelte b/frontend/src/lib/components/SchemaModal.svelte
index f644fb6a07..caaa9b5568 100644
--- a/frontend/src/lib/components/SchemaModal.svelte
+++ b/frontend/src/lib/components/SchemaModal.svelte
@@ -27,6 +27,9 @@
 			currency: schema.currency,
 			currencyLocale: schema.currencyLocale,
 			multiselect: schema.multiselect,
+			items: schema.items?.type
+				? { type: schema.items.type as 'string' | 'number' | undefined, enum: schema.items.enum }
+				: undefined,
 			required,
 			schema:
 				schema.type == 'object'
@@ -105,6 +108,7 @@
 		property.currency = undefined
 		property.currencyLocale = undefined
 		property.multiselect = undefined
+		property.items = undefined
 
 		drawer.closeDrawer()
 	}
@@ -242,7 +246,10 @@
 						<ArrayTypeNarrowing bind:itemsType={property.items} />
 						<div class="mt-4" />
 						<Label label="Display using multiselect">
-							<Toggle bind:checked={property.multiselect} />
+							<Toggle
+								disabled={property?.items?.enum == undefined}
+								bind:checked={property.multiselect}
+							/>
 						</Label>
 					{:else if property.selectedType == 'number' || property.selectedType == 'integer'}
 						<NumberTypeNarrowing