Dear all, I'm now working on some programming on interactive displays from R. So I'm creating an R display and want some interactive selection to be available. I know ggobi and things like that, but it doesn't cope with dendrogram. So, if I go back to R graphics, as far as I know, -- "For the usual X11 device the identification process is terminated by pressing any mouse button other than the first. " but I really want to keep it active all the time unless I want it to be ended. Is there any package can do such things? Also, is there any way that I can make my right click to active some drop down menus, or something like that? Thanks a lot. ___________________________________________________ Zhesi He Computational Biology Laboratory, University of York York YO10 5YW, U.K. Phone: +44-(0)1904-328279 Email: zh107@york.ac.uk ___________________________________________________ [[alternative text/enriched version deleted]]