I want to add inbetween frames. I dont want to select all keys and drag. I know maya has a script like that. And very useful sometimes. Even if you have markers. Is there any addon for this?
I don’t know of a single-action hotkey, but this is easier than dragging.
Select all objects you want to adjust (potentially all objects in your scene.) On graph editor window, hit ] to Select After Current Frame . (Note that this also selects current frame.) g x 1 enter to move all selected keyframes exactly 1 unit in the x axis-- that is, to move them one frame later.
Your solution is ok for now. Thank you.