Questions on some mod limits

[PvK]

Please confirm, if possible:

* There is nothing like #darkvision <amt>, except #blind.

* There is nothing like #copyspec, only #copystats.

* There is nothing like #clearweapons or #cleararmor.

* So if for example I wanted to give an existing unit dark vision 50%, I would need to pick say an Agarthan unit and use #copystats and then replace his weapons and armor with new weapons and armor, and then also go reset all his other abilities and levels?