Can i copy a frame then paste it in the next frame and edit it without editing the original?

So i recently got the Toon Boom Harmony Essentials trial and i have been having lots of trouble.
I want to copy a frame and paste it so that i can make slight changes, i have noticed that when editing the copied layer it also edits the original.
Can i in any way copy and paste it and have it as an individual from the original?

Thanks.

You can Copy/Paste with the paste special… (CTRL+B)
When you do that you can ask that the software creates a new drawing every time you use a special paste so that frame doesn’t use the same drawing but a copy of that drawing that you can modify.