Maybe I dont understand your question, but if its only the way to open more than one tables at time, I do it this way:: every time you open a new database put the "NEW" clause of the USE command:
use CurDir()+"\"+clients NEW .. use CurDir()+"\"+orders NEW
That is more comfortable than the old dbase way:
Select 1 use CurDir()+"\"+clients NEW .. Select 2 use CurDir()+"\"+orders NEW