No, I have not lost anything, I often save my work
Most often before merging. I also quite frequently merge twice: either using shift+f9 or ctrl+merge down and then I choose the one that suits me better.
But here I like this effect
For me, the fact that the verve can be undone only once is priceless.
If you could activate some 'code' to completely disable 'undo' for for eg. a bigger card I would like to use it.
Now, I'm working on: