Well, these are available for Session:
But I see what you're saying about multiple tabs, which is why I asked this question here: Prevent Multiple Tabs
(I haven't worked on the tab issue since the last post, as there were other things to deal with.)
The issue I have with the Enter key is that I have to press it twice to get the "action" to work if I input values into the numeric input fields. If I use the text input boxes, I only need to press Enter once.
In this case, the biggest wrapper is the root, and that is where the onKeyDown event resides.
A colleague asked about a higher level function/listener, i.e. Project/Session, that might be able to solve this, which is why I asked.