Vytek and D9 more liberal settings?

[RAN]

Any body know whether either of these models allow the user to input a slightly more liberal setting?

 

[RSdiver]

I use air in my tank but run my computer in Nitrox mode and adjust the PO2 to 1.5 or 1.6 from the default of 1.4, thereby giving you a more liberal setting.

 

[RAN]

I Looked at The vytek Manual online and you can go in and chose an "altered" rbgm
that offers a more liberal algorithm
anybody use this?