Need an extension for chat, will give credit

MIT App Inventor Help
1

I need an extension that you can have a chat UI. It needs to be simple too.
My requrements for credit:
Must have a " user is typing" thing (you know, the do dot dot), Must have a nice UI where you can send a message, have an ID for each message, (not required to be filled in, just for saving data) and a way to get a response, which is by having a block that is named (Receive message). Look how its shown:
[ represents a block that a user can connect it to

CALL
GetMessage
 Message text        [
Profile picture URL [
Identification           [

Pls help

2

Try a search for chat on the community

3

That is what I tried, but I could not find anything, and ChatUI does not work.

4

If you can allow chat UI to work (mod edit, please do not post extensions by others directly to the community)
)
then save an app and then show it to me that would be great.

5

First initialize chatui in verticalarrangement
Then try send / receive messages

6

Also

7

I appologize, but I cannot pay anything.I just want a chat UI screen.

8

what is wrong with chatui?

9

It's A bt to complicated, how the errors work. I need someone to either make a demo app (aia) or make a simplified extension.