How to open menu folders with keystroke ?

Request 3 - It would be nice if the behaviour of the menu was the same with both keyboard and mouse - i.e. for the sub menus to spring open automatically as one moves up and down the list.

About this request. As I understand you want TLB to open sub menus when you select it using keyboard. But this can cause the problems. With mouse there are not problems because you can move mouse anywhere but when submenu opens the keyboard focus comes to submenu. The other thing this is very non-standard behaviour. If you are using keyboard then you need to press right-arrow to open menus. using Enter for this is also standard but I agree that overwriting this behaviour can be useful.