Yeah, thanks a lot. So finally I have it all sorted.
The 1 fn is available only in Nomad and Accent Nomad but I could use the 1 fn2 from Modifier/Accent Modifier. It's a no brainer.
The pn does not exist in R0, only R5 in Nomad, I'll have to fish something in Icono maybe. Got a "Cal" key in the upper-right corner, R0 then, pretty useless, could stuff one key from Icono too.
Everything else is covered.
In the mean time I could see if I can re-program the Vortex Tab90M so that: cal becomes pn, pn becomes fn, fn becomes command (apple key), as I mostly use this keyboard on a Mac.