Ultra/SG2100...which button on RCU?

[overthehill]

Well, I was sure it wouldn't take too long for the next adventure in FTA installation.
The east limit button was pressed by mistake. I wanted to 'disable East-West limits', the button for this (Installer Menu) is shown on screen as a box with the letter 'i' inside.
I have a Viewsat Ultra, and there are no buttons like that. We thought it might refer to 'Input' or 'Info' button on the RCU.
I'm not intrested in randomly pushing buttons right now, could someone help?
Thanks in advance.

[overthehill]

I know, it would rank up there with the other clever questions.
I did, however, spend inordinate amount of time trying to find an answer in Sadoun forums and many others. Suppliers, manufacturers and any others I could think of at the time. I knew that I had seen this before, maybe camera, dvd, JVC and went thru all their manuals. I had also polled 5 other people with computor savy. All were undecided at the time(input usually capital). Frustrated, I finally opened this thread.
Now I am happy to say, issue solved. I knew I had seen this before, and finally it did pop up yesterday.
(oh yeah, I didn't wait)