APU, Cabin Temperature, and such...

Hi,

i'm working on an A340 sim.
Using PM i noticed that the APU, Hydraulics and other pages more or less
are
without data.
The cabin temperature at FL260 was a nice and cosy -26 degrees celsius.
(i once experienced a minus 40 in the mountains of canada, so -26 are not
that bad for me, but my passengers were kinda freezin.)

So i wonder what options i have to get these parts of PM to show the proper
information.
How did other simbuilders solve this problem ?
Is it only possible through pmSystems or are there FSUIPC offsets for PM to
control it ?

I'd appreciate any input on that topic.

Thank you,
Peter