I have a Similar  Question   for the buttons  
I have tried to assign the Buttons in FSUIPC  addon in FSX  and I cant seem to go deaper than one selection/menu 
Ie  I would like to setup a few short cuts to occur with the push of a button   as a example I would like to change from day to night mode and this involves 
Alt+W+T+N+enter  and I cant  get past Alt+W  I have had a look at the FSUIPC Config.ini in the Modules folder and tried playing with the button setups 
as a Example   I have tried 6,p64,8,K87,84,78,13    also just 6,p64,8,K87,84    (with and without comas) but all I end up with is alt+w 
I am hoping this can be done as it saves looking up  FSX commands all the time. 
I would also like to load default flights through the buttons as well ( these flights are pre saved flights and I have cut there load name down in size,  you can see what I am trying to do by the discriptions below,  so is this at all posable and how do I go about this. 
I am not a Programer in any shap or form, 
Pitot Heat and reset flight work just fine, to mention just 2 as these are just one button deep or are FSX Control codes  
I have setup the  Wide Client   and have setup the screens as below  plus the FSUIPC.INI  BUTTONS  EXAMPLE AS WELL 
[buttonScreen] 
Size=5,5 
0=T"Pitot Heat" 
1=B"Reset Flight" 
2=B"Weather \rClear" 
3=B"Weather \r Rain" 
4=B"Aproach \rKai Tak Night" 
5=B"Change \rto Morning" 
6=B"Change \rto Day" 
7=B"Change \rto Evening" 
8=B"Change \rto Night " 
9=B"Lukla Nepal" 
10=B"Sydney \rYSSY" 
11=B"London" 
12=B"New York" 
13=B"Paris" 
14=B"Queenstown \rNZQN " 
15=B"Perth 03 \rYPPH  " 
16=B"Aproach \rKai Tak day " 
17=B"Slew \rup"		 
18=B"Slew \rDown" 
19=B" Toggle \r Traffic " 
20=B" " 
21=B" " 
22=B" " 
23=B" " 
24=N"Exit >" 
25=B"Exit FS" 
26=B"Shutdown PCs" 
27=B" " 
28=B" " 
29=B" " 
30=B" " 
31=B" " 
32=B" " 
33=B" " 
34=B" " 
35=B" " 
36=B" " 
37=B" " 
38=B" " 
39=B" " 
40=B" " 
41=B" " 
42=B" " 
43=B" " 
44=B" " 
45=B" " 
46=B" " 
Buttons  controls in the FSUPIC.ini file 
[buttons] 
Buttonrepeat=20,10 
13=P64,0,C66072,0 
14=U64,0,C66073,0 
15=P64,1,C65591,0 
16=P64,24,C65733,0 
17=P64,25,Cx02003320,xABCD 
21=PT,0,Cx02000BC8,x0007 
22=UT,0,Cx02000BC8,x0000 
23=RT,3,C65602,0 
24=UT,3,C65697,0 
25=PB,0,Cx02000BC8,x0007 
26=UB,0,Cx02000BC8,x0000 
27=PB,1,C66079,0 
28=PB,2,C66080,0 
29=RB,3,C65607,0 
30=RB,4,C65615,0 
31=PB,5,Cx02007370,x003C 
32=RY,1,C65607,0 
33=RY,0,C65615,0 
34=RZ,1,C65607,0 
35=RZ,0,C65615,0 
37=PY,4,C65561,0 
38=P64,2,W87,11 
39=P64,19,C1009,0