requiring file with multiple|tuple return

Zero-K uses multiple|tuple return e.g.

drone_defs.lua

......
return carrierDefs, thingsWhichAreDrones, unitRulesCarrierDefs

--carrierDefs is correct
--thingsWhichAreDrones and unitRulesCarrierDefs  are unknow
local carrierDefs, thingsWhichAreDrones, unitRulesCarrierDefs = VFS.Include("LuaRules/Configs/drone_defs.lua")

but in default settings LuaLS only detect the first return value and left others unknow.

Can you make a setting to enable it?

Start by reproducing the issue with drone_defs.lua and the VFS.Include call shown in the report, checking how LuaLS handles the three returned values. Trace the require/include analysis entry point and identify the relevant setting path; done means the second and third assigned values are recognized without breaking the existing first return value.