To make one button do different things you need a way to tell FSUIPC wehich of the things you want it to do, because otherwise what is it supposed to do? Guess?
If you mean you want one button to do three things at the same time you will need to edit the INI file and add lines for the extra actions. Each button can have almost any number of actions assigned, just not in the Options Dialogue. Please see the FSUIPC advanced users documentation.
Hi peter, could you tell me please which section I should read and execute in order to assign to a button three events in the FSUIPC advanced users Documentation, cause I'm not finding it. [or the title in the appendix so I can do it] thank you