Hi Pete, 
Sorry for the confusion. With prints I ment Printed Circuit Boards (PCB). 
To clarify my question: 
I have 2 PCB’s from Leo Lacava with each 6 analogue and 16 switch i/o's per PCB. 
These PCB’s have USB output and simulate as a Gamepad. And not as a Keyboard. 
So next to my ChVirtual Pilot Pro Gamepad I do see in the Windows Gamepad these 2 extra PCB’s. 
In flight in FlSim under Options-Controls-Assignments I can perfectly assign functions to the additional switches and 100K potentiometers:  
e.g. I designated the 6 analogue inputs to Throttle 1, 2, Prop 1, 2 and Mixt. 1,2. 
My intention is to put more switching input for a Beechcraft 58 hardware input panel by means of multiple USB PCB’s that all simulate as a Gampad.  
So I get a panel with multiple switches, incl. Com, Nav, A/P, so as to be able to make nice IFR simulated flights, being able to control the various switch inputs convenient and direct from a hardware panel. 
I tried with an older version of FSUIPC to assigning all these extra i/o finctions of the additional PCB’s, so the “extra” Gamepads, and that goes very well. 
My question is, before getting an up-to-date version FSUIPC:  
- is there a maximum number of Gamepads (read: additional PCB’s to be produced ) that can be put parallel under Windows as USB Game control? 
- is there a maximum number of analogue and switch i/o inputs per each single USB Game control PCB? 
Reason is that Leo Lacava had a single USB  game adapter i/o board, providing 128 ( ! ) switch inputs..... 
- is there a total number of input lines that FSUIPC can handle, (via USB Game control prints) in the FSUIPC configuration file? 
I hope I have been able to make my questions more clear. 
Highly appreciating your feedback, 
Kind regards, 
Jan L.F. Bos 
Netherlands