Don, I had sort of the same reaction... huh??? If you this, you can't to that, unless... But if we look at the process....(which I left out) There are 2 different users. One lands during a specific process on tab A One lands on tab B. Within that process A can not go to B and B not to A. I have to look at it from the perspective/context A to B or B to A (not and). It depends on how the (more than complex) flow goes. The "last" user in a specific process flow will have the final 'choice'. And it will be sometimes the user of tab A and sometimes the user of tab B. Like I told John already in my previous post, I still have the feeling something will go wrong somewhere sometime. The client seems to be confident.... He obviously knows something that I don't know...yet