"Sanyo" projector, what do the function keys of the remote control mean?

I don't know which one the landlord asked, but the function keys on the conventional projector remote control have the following functions:

Menu menu key, focus adjustment, zoom, input-input selection, mute,

Volume-volume, freeze-frame, aotoadj automatic projection, selection-selection,

Trapezoidal correction, zoom adjustment, light bulb indicator, timer.

Basically, these formal ones are enough.