diff --git a/src/actions.ts b/src/actions.ts
index fea6f0e..9c0e6e9 100644
--- a/src/actions.ts
+++ b/src/actions.ts
@@ -1,6 +1,7 @@
 import type {
 	CompanionActionDefinition,
 	CompanionActionDefinitions,
+	CompanionFeedbackContext,
 	CompanionActionEvent,
 	CompanionInputFieldNumber,
 	CompanionInputFieldTextInput,
@@ -56,7 +57,10 @@ const matrixInputs: Array<CompanionInputFieldTextInput | CompanionInputFieldNumb
 	},
 ]
 
-async function resolvePath(self: InstanceBase<EmberPlusConfig>, path: string): Promise<string> {
+export async function resolvePath(
+	self: InstanceBase<EmberPlusConfig> | CompanionFeedbackContext,
+	path: string,
+): Promise<string> {
 	const pathString: string = await self.parseVariablesInString(path)
 	if (pathString.includes('[') && pathString.includes(']')) {
 		return pathString.substring(pathString.indexOf('[') + 1, pathString.indexOf(']'))
diff --git a/src/feedback.ts b/src/feedback.ts
index 3085728..7f86dca 100644
--- a/src/feedback.ts
+++ b/src/feedback.ts
@@ -1,6 +1,8 @@
-import { combineRgb, InstanceBase } from '@companion-module/base'
+import { combineRgb /*InstanceBase*/ } from '@companion-module/base'
 import type { CompanionFeedbackDefinition, CompanionFeedbackDefinitions, DropdownChoice } from '@companion-module/base'
+import type { EmberPlusInstance } from './index'
 import { EmberClient } from 'emberplus-connection'
+import { resolvePath } from './actions'
 import type { EmberPlusConfig } from './config'
 import { EmberPlusState } from './state'
 
@@ -14,7 +16,7 @@ export enum FeedbackId {
 }
 
 export function GetFeedbacksList(
-	_self: InstanceBase<EmberPlusConfig>,
+	_self: EmberPlusInstance, //InstanceBase<EmberPlusConfig>,
 	_emberClient: EmberClient,
 	config: EmberPlusConfig,
 	state: EmberPlusState,
@@ -35,6 +37,7 @@ export function GetFeedbacksList(
 					id: 'path',
 					choices: config.monitoredParameters?.map((item) => <DropdownChoice>{ id: item, label: item }) ?? [],
 					default: config.monitoredParameters?.find(() => true) ?? 'No paths configured!',
+					allowCustom: true,
 				},
 				{
 					type: 'number',
@@ -46,8 +49,12 @@ export function GetFeedbacksList(
 					default: 0,
 				},
 			],
-			callback: (feedback) => {
-				return state.parameters.get(feedback.options['path']?.toString() ?? '') == feedback.options['value']?.toString()
+			callback: async (feedback, context) => {
+				const path = await resolvePath(context, feedback.options['path']?.toString() ?? '')
+				return state.parameters.get(path) == feedback.options['value']?.toString()
+			},
+			subscribe: async (feedback, context) => {
+				await _self.registerNewParameter(await resolvePath(context, feedback.options['path']?.toString() ?? ''))
 			},
 		},
 		[FeedbackId.String]: {
@@ -65,6 +72,7 @@ export function GetFeedbacksList(
 					id: 'path',
 					choices: config.monitoredParameters?.map((item) => <DropdownChoice>{ id: item, label: item }) ?? [],
 					default: config.monitoredParameters?.find(() => true) ?? 'No paths configured!',
+					allowCustom: true,
 				},
 				{
 					type: 'textinput',
@@ -76,8 +84,15 @@ export function GetFeedbacksList(
 				},
 			],
 			callback: async (feedback, context) => {
+				const path = await resolvePath(
+					_self,
+					await context.parseVariablesInString(feedback.options['path']?.toString() ?? ''),
+				)
 				const value: string = await context.parseVariablesInString(feedback.options['value']?.toString() ?? '')
-				return state.parameters.get(feedback.options['path']?.toString() ?? '') == value
+				return state.parameters.get(path) == value
+			},
+			subscribe: async (feedback, context) => {
+				await _self.registerNewParameter(await resolvePath(context, feedback.options['path']?.toString() ?? ''))
 			},
 		},
 		[FeedbackId.Take]: {
diff --git a/src/index.ts b/src/index.ts
index 613b7d7..e7eabbc 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -16,7 +16,7 @@ const reconnectInterval: number = 300000 //emberplus-connection destroys socket
 /**
  * Companion instance class for generic EmBER+ Devices
  */
-class EmberPlusInstance extends InstanceBase<EmberPlusConfig> {
+export class EmberPlusInstance extends InstanceBase<EmberPlusConfig> {
 	private emberClient!: EmberClient
 	private config!: EmberPlusConfig
 	private state!: EmberPlusState
@@ -46,7 +46,7 @@ class EmberPlusInstance extends InstanceBase<EmberPlusConfig> {
 		this.setupMatrices()
 		this.setupMonitoredParams()
 
-		this.updateCompanionBits()
+		this.updateCompanionBits(true)
 	}
 
 	/**
@@ -64,7 +64,7 @@ class EmberPlusInstance extends InstanceBase<EmberPlusConfig> {
 		this.setupEmberConnection()
 		this.setupMatrices()
 		this.setupMonitoredParams()
-		this.updateCompanionBits()
+		this.updateCompanionBits(true)
 	}
 
 	/**
@@ -83,10 +83,11 @@ class EmberPlusInstance extends InstanceBase<EmberPlusConfig> {
 		this.emberClient.discard()
 	}
 
-	private updateCompanionBits(): void {
-		this.setActionDefinitions(GetActionsList(this, this.client, this.config, this.state, this.emberQueue))
+	private updateCompanionBits(updateAll: boolean): void {
 		this.setFeedbackDefinitions(GetFeedbacksList(this, this.client, this.config, this.state))
 		this.setVariableDefinitions(GetVariablesList(this.config))
+		if (!updateAll) return
+		this.setActionDefinitions(GetActionsList(this, this.client, this.config, this.state, this.emberQueue))
 		this.setPresetDefinitions(GetPresetsList())
 	}
 
@@ -197,11 +198,36 @@ class EmberPlusInstance extends InstanceBase<EmberPlusConfig> {
 				})
 		}
 	}
+
+	public async registerNewParameter(path: string): Promise<void> {
+		if (this.config.monitoredParameters?.includes(path) === true) return
+		this.emberQueue
+			.add(async () => {
+				try {
+					const initial_node = await this.emberClient.getElementByPath(path, (node) => {
+						this.handleChangedValue(path, node).catch((e) => this.log('error', 'Error handling parameter ' + e))
+					})
+					if (initial_node) {
+						this.log('debug', 'Registered for path "' + path + '"')
+						if (this.config.monitoredParameters) {
+							this.config.monitoredParameters.push(path)
+							this.updateCompanionBits(false)
+						}
+						await this.handleChangedValue(path, initial_node)
+					}
+				} catch (e) {
+					this.log('error', 'Failed to subscribe to path "' + path + '": ' + e)
+				}
+			})
+			.catch((e) => {
+				this.log('debug', `Failed to register parameter: ${e.toString()}`)
+			})
+	}
 	// Track whether actions are being recorded
-	public handleStartStopRecordActions(isRecording: boolean) {
+	public handleStartStopRecordActions(isRecording: boolean): void {
 		this.isRecordingActions = isRecording
 	}
-	private async handleChangedValue(path: string, node: TreeElement<EmberElement>) {
+	public async handleChangedValue(path: string, node: TreeElement<EmberElement>): Promise<void> {
 		if (node.contents.type == ElementType.Parameter) {
 			this.log('debug', 'Got parameter value for ' + path + ': ' + (node.contents.value?.toString() ?? ''))
 			this.state.parameters.set(path, node.contents.value?.toString() ?? '')