I need to be able to Clone out stuff completely differently for each frame - as each frame is a separate picture, there is no correlation between them.
I've found there's a Life Time setting with s Single option - this looks like exactly what I need. Some quick tests shown that it's working but setting it up is a bit tricky.
When I draw a Clone stroke the Life Time parameter is set to Single, but there is no "Frame" field to select which frame should it live on. I have to switch the mode to something else, and re-select Single, then the option starts working as expected and the Frame number field appears.
I guess something is not refreshing properly in the GUI with this option - but I'm very happy that this function is there - looks like I really can do this kind of work with Natron.
And once the stability improves - it's going to absolutely smoke everything else.
Thanks for the tutorial link - I'll check it out!