diff --git a/src/app/messages/messagecontrol.ts b/src/app/messages/messagecontrol.ts
new file mode 100644
index 0000000..73a6e52
--- /dev/null
+++ b/src/app/messages/messagecontrol.ts
@@ -0,0 +1,4 @@
+export class MessageControl {
+  command: string;
+  next_visibility?: boolean;
+}