Open mando_bombs_armedrec.Sara init.sqf, you will see there a section starting with
// Setup dialog options 1, 2 and 3, dont set any of these variables if you dont want special options
and ending with
// End of options setup dialog configuration
For each list you want to configure you need to set three global vars: mando_airsupport_opt1_text, mando_airsupport_opt1_array and mando_airsupport_opt1_action. All of them are already explained in the online help. You set the option title, then the array of texts that will be listed in the list box, and then a code var. This code variable is just a block of code that is executed automatically when the selected option changes, and the code gets a single parameter which is the selected item text. With this selected item text (_this select 0) in your code var you may do whatever you want, for example, changing other global vars affecting the console: vehicle types, soldier types, etc. These blocks of code are yours, so it is up to you to decide what to do inside them.