About your second question;
I always bring up the radiostack in my Fokker 70 and 100 by pushing shift+4. I never use the icons, don't know why

.
BTW; maybe you already know this but anyway: pressing shift+ a number brings up al available windows.
On some panels there are no buttons at all so I always try this.
Shift+1 makes the panel disappear, 2,3,4 and so on opens windows.
This works in every view mode which is handy. For example in VC mode, when you want to see your GPS etc.
Good luck.
Enjoy your Fokker. did you get the sounds as well? Brilliant.
Cheers
AJ