Can I control more than one XImtool at the same time?
Yes, but controlling them from the same IRAF session is complicated. Since XImtool can accept two inputs simultaneously and has multiple frame buffers users should consider whether they really need two XImtools in the first place. If so then the easiest way is to control them from different IRAF sessions so that different socket numbers can be assigned to each session, each XImtool would be started with a different socket number as well.
