Paul ... Hi ... I think what you're saying is how do I right click on a mac? ... quite simply I use a Windows mouse with USB and plug it in to the keyboard no software needed. Ctrl click is too much like hard work! The scroll wheel works too. I think the new Mac Mighty Mouse does all this and more.
As for getting chat to work properly. I know it works if both participants want it to and .... until you mess it up by clicking on block host instead of send which some idiot has done not to long ago