TBH, I think I have read this a few times in the past on some forums, but I don't think it has been in any updates etc.
THIS WOULD BE AWESOME.... Like... So many times I have MTd stuff in a wrong LS and if I am in the middle of crafting (which I do a lot) I have to actually stand up and change the ls. And usually by that time my witty comment in response to some banter is highly unvalid *cries*