In a mission I created I need to modify 2 BIS functions (BIS_initRespawn, BIS_fnc_arsenal) but after some testing it turns out to be impossible to do when these functions are called from uiNamespace (it is possible if they are called from missionNamespace).

I tried using CfgFunctions in description.ext but even if I use "CfgFunctions {class BIS {class whatever {class ARSENAL" the function is not recompiled in missionNamespace/uiNamespace. I used allowFunctionsRecompile=1; in description.ext.

Is allowFunctionsRecompile useful only for custom file based scripts?

Anyway I will have to try copy the RscDisplayArsenal dialog class and modify onLoad/onUnload event handlers directly and redirect them to my custom version of BIS_fnc_arsenal. I hoped it would be easier to reuse BIS functions.