PC user who made the switch to Mac recently. Nearly twenty years of PC use and I can do just about anything from the keyboard, so it's taking me some time to learn/re-learn all my keyboard shortcuts. There's one I can't seem to figure out. A fairly standard shortcut on Windows is F2 for editing a selection. If a file is selected, you can edit the filename by hitting F2. If you're working with a spreadsheet and hit F2, you begin editing the selected cell. In Numbers, I can't seem to find the keyboard shortcut to edit the selected cell. I know I can begin typing to overwrite the cell contents, but often I want to add something to the contents or fix a typo. Is this possible without mouse/trackpad?