I remember having a solution on my server for that ..using OverlapSphere before doing / hg join
The code to include would be this:
Python:
Objects = Physics.OverlapSphere (Player.Location, 6)
For x in objects:
If "meshbatch" in x.name.lower ():
Player.MessageFrom (sysname, red + "ERROR: -------- You must be away from any structure --------")
Return
And everything solved,
@DreTaX already knows this solution for several months ago, but lately it is very busy with the exams .... keep calm and soon update it ,,, maybe !!, otherwise you can try to learn python and Include it yourself ... greetings !!