Hi, it really is very frustrating when that happens.
I didn't know that the CRTL+Z, it wasn't working in Pedak, I do almost everything from Ecency.
The other thing I do, is that I no longer write directly on the frontend I almost always do it in LibreOffice and then I pass it to the frontend, and so I keep track of what I write.
I say goodbye, I hope that you are in better health and that this type of situation will happen to you again.
Happy weekend.