How to use the CTRL key in Android – with Multiling O keyboard

How to use the CTRL key in Android – with Multiling O keyboard
Using Ctrl on an Android smartphone to copy, cut, paste, undo and select all – with Multiling O Keyboard.

Ctrla Select all
Ctrlc Copy
Ctrlv Paste
Ctrlx Cut
Ctrlz Cancel

if you can't edit it as shown in the video, you can copy the layout then edit it with any text editor, then paste the edited layout into Multiling O.
you can see this new video for more details
https://youtu.be/Z7UQUOOhqpw

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