Yes it compiles
It's from l4d2 starter kit

That's google greatest UI/UX

Check if it now has access

Bump. Would be nice if there's a code condition to see both parameters instead of relying on version detection.

DMX IMPORTER: now working on witch_agitated_hands.dmx
- Loading DMX...
Importing DMX animation "witch_agitated_hands"
Python: Traceback (most recent call last):
File "/home/xdshot/.config/blender/2.93/scripts/addons/io_scene_valvesource/import_smd.py", line 76, in execute
self.num_files_imported = self.readDMX(filepath, self.properties.upAxis, self.properties.rotMode)
File "/home/xdshot/.config/blender/2.93/scripts/addons/io_scene_valvesource/import_smd.py", line 1711, in readDMX
smd.a.hide_set(False)
AttributeError: 'NoneType' object has no attribute 'hide_set'

location: <unknown location>:-1

https://drive.google.com/file/d/1etvjoAb68yelS_VttITCs5WsOrWp2NMa/view?usp=sharing

Set $origin qc, it allows rotating

Import .smd

Don't bother. You can export the model with all bones, studiomdl will strip unneeded bones anyway.

Yes

Wait for update. For now you can revert to older

Bike bones are embedded into armature along with tank skeleton.

Ideally both bike and hulk are one model, with parts are either one mesh or separate bodygroups.