X41 Tablet HELP with button functions

[RRHODY]

Have a, new to me, X41 Tablet and need help decoding the buttons under the screen [mounted in the bezel, not on the keyboard] before mucking around. Can’t seem to find them explained in the HMM.

Reading from left to right:

#1 Power on/off with lock/unlock symbols – Understood

#2 Small round dot with recess – looks like a reset button, but to what does it reset?

#3 Button with icon of screen vertical and horizontal – Understood as changing screen orientation.

#4 Button with icon that looks like a briefcase standing end – NOT UNDERSTOOD

#5 Button marked Esc – Understood

#6 Button with an up arrow – Assumed to be ENTER?

#7 [far right] arrow left arrow right – Seems to be page changing?

Any guidance or directions were to find answers is appreciated - thanks.

[RRHODY]

Forgetaboutit.
Found the setup poster on web. It answered my questions - all except the up arrow.