You are correct. I thought I read about setting focus in there somewhere.
If you want to force the tab to always be the default, you would have to work with the appropriate record in sys_user_preference. The user preference always remember the tab the user selected last. You would have to create (or update) the record to the value you wanted. Here's an example of the value I see when I click the Notes tab on incident (tab #0). Note the value is empty. When I click the next tab, it gets set to 1.
If you want this to be the default, you could write an business rule on sys_user_preference that watches for specific names getting updated and force them to a value.
The problem I see in this is when I'm working on tab #2 (the third from the left), enter some information and save, the form is going to redraw and force me to the first tab again. As a user, this could get annoying. "Hey, I was just working over there, why am I thrown back here?"
