As you say GS doors and windows are very complex with many macros, and macros calling macros.
The hideparameter all command will be in one of those macros somewhere I am sure.
If it is not in the parameter script it could possibly be in the master script (but I don't think so).
If I get a chance later I will load the GS library and have a look around (I don't actually use it).
Barry.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10