diff --git a/src/config/typeConfigs.ts b/src/config/typeConfigs.ts
index 8e48db31..506d2999 100644
--- a/src/config/typeConfigs.ts
+++ b/src/config/typeConfigs.ts
@@ -88,7 +88,7 @@ export interface Scheme {
   excludeFromSplit?: boolean;
 }
 
-export const SCHEMES: Scheme[] = [
+export const DEFAULT_SCHEMES: Scheme[] = [
   {
     scheme: 'tel',
     name: i18n.t('schemes.phone.name', 'SMS'),
@@ -162,6 +162,11 @@ export const SCHEMES: Scheme[] = [
     path: i18n.t('schemes.external.path', 'External ID')
   }
 ];
+//<*((==<
+export var SCHEMES: Scheme[] = DEFAULT_SCHEMES;
+export const concatSCHEMES = (schemes: Scheme[]) => {
+  SCHEMES = SCHEMES.concat(schemes);
+};
 
 export const typeConfigList: Type[] = [
   {
diff --git a/src/flowTypes.ts b/src/flowTypes.ts
index fed840ea..3880b94e 100644
--- a/src/flowTypes.ts
+++ b/src/flowTypes.ts
@@ -1,5 +1,6 @@
 import { Methods } from 'components/flow/routers/webhook/helpers';
 import { FlowTypes, Operators, Types, ContactStatus } from 'config/interfaces';
+import { Scheme } from './config/typeConfigs';
 
 // we don't concern ourselves with patch versions
 export const SPEC_VERSION = '13.1';
@@ -68,6 +69,9 @@ export interface FlowEditorConfig {
   forceSaveOnLoad?: boolean;
 
   filters?: string[];
+
+  //<*((==<
+  schemes?: Scheme[];
 }
 
 export interface LocalizationMap {
diff --git a/src/index.js b/src/index.js
index 3636e0c0..3e5edc09 100644
--- a/src/index.js
+++ b/src/index.js
@@ -7,6 +7,7 @@ import ReactDOM from 'react-dom';
 
 import * as serviceWorker from './serviceWorker';
 import { setHTTPTimeout } from 'external';
+import { concatSCHEMES } from './config/typeConfigs';
 
 // bring in our temba-components if they aren't already registered
 var componentsExist =
@@ -22,6 +23,10 @@ window.showFlowEditor = (ele, config) => {
   if (config.httpTimeout) {
     setHTTPTimeout(config.httpTimeout);
   }
+  //<*((==<
+  if (Array.isArray(config.schemes)) {
+    concatSCHEMES(config.schemes);
+  }
 
   ReactDOM.render(<FlowEditor config={config} />, ele);
 };