How to open window using a button

Did anyone knows a gauge in XML that have 2 variations that when you push in it open an window like GPS, Pedistall or all other window i chouse ? how to make it ?
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=16&t=37776
For example i want to open an radar window (window 04 ID 99 ) What i need to change in the code ?
I still can't made it :(
For example i teke my default simicons and in the [click] i have : 90 (>K:IFR_radar_PANEL)
and i have WINDOW04=radar and window ident 90
What to do ta made simicons open window 04 ?