Start by either creating aninit.sqf file or use the existing one within your mission directory. Once located, open the init.sqf file and proceed to copy this code or whichever code you prefer.
2
Execute code via custom sqf file
You can also create a init.sqf then create a additional file called for example DisablePanels.sqf, then copy all or one of the codes down below in to the DisablePanels.sqf. After that head over to your newly created init.sqf and copy & paste this in there:
[] execVM "DisablePanels.sqf";
This function disables all user interface panels for the player(s), until they die then they will work again.
player enableInfoPanelComponent ["left", "MinimapDisplay", false];
player enableInfoPanelComponent ["right", "MinimapDisplay", false];
player enableInfoPanelComponent ["left", "MineDetectorDisplayComponent", false];
player enableInfoPanelComponent ["right", "MineDetectorDisplayComponent", false];
player enableInfoPanelComponent ["left", "MinimapDisplayComponent", false];
player enableInfoPanelComponent ["right", "MinimapDisplayComponent", false];
player enableInfoPanelComponent ["left", "CrewDisplayComponent", false];
player enableInfoPanelComponent ["right", "CrewDisplayComponent", false];
player enableInfoPanelComponent ["left", "TransportFeedDisplayComponent", false];
player enableInfoPanelComponent ["right", "TransportFeedDisplayComponent", false];
player enableInfoPanelComponent ["left", "SensorsDisplayComponent", false];
player enableInfoPanelComponent ["right", "SensorsDisplayComponent", false];
player enableInfoPanelComponent ["left", "SlingLoadDisplayComponent", false];
player enableInfoPanelComponent ["right", "SlingLoadDisplayComponent", false];
player enableInfoPanelComponent ["left", "UAVFeedDisplayComponent", false];
player enableInfoPanelComponent ["right", "UAVFeedDisplayComponent", false];
This function disables all user interface panels for the player(s), they will stay disabled even after the player has died and respawned.