Suggestion with pressing Tab to add Branch
After editing a new branch, we must press "Enter" before pressing "Tab" to add a new branch. I don't think the space created by pressing tab is necessary while editing a branch, so why not make tab "Enter + Tab" so we can add branches faster. thanks
This is quite annoying when you're trying to work fast - also if you create a sibling, child or box branch and then decide you'd rather not, Ctrl+Z to undo doesn't return focus to any branch so you have to reach for the mouse. I'd say for example that Tab to create a child branch, followed by Ctrl+Z to undo should restore focus to the parent branch so you can press Enter to create a sibling.
I believe that iMM needs to be very flexible and customizable for everyone, since everybody is different. Many more features in iMM should be adjustable and customizable. In other words, my suggestion and many others should be set as options which users can choose or not choose depending if that options is appropriate and useful for them.