Shortcut behaviour

There is a shortcut for brackets (Shift-T). But it would be much more useful with a change - there are 8 different types of bracket and the shortcuts sets the tool to the last used one (I think). I suggest a better behaviour would be to change to the bracket tool, but show the 'fly out' selection of the 8. No extra work if I want the one it chooses, but less work if I dont. Similarly for the other tools with flyouts and shortcuts - Chemical Symbols, Chromatography toos, Orbitals and Arrows