Removing last opened database and or company file

hi,

is it possible to remove the last opened file from the File menu? you know how you open up a company file, work within it, close it down, then open another one, is it possible to have those entries either a) not visible or b) removed completely so that user's cannot flick between different companies?

As in, click File menu, look down and see 1. CRONUS Australia Pty Ltd then 2. mycompname 3. testcompnam - ?

thanks,

novinsai