Use:
All plugs have optimized subD topology which means you can increase the resolution as needed. This means they can be used in a subD workflow or in a non-subD workflow.

If you are using non-subD then simply give the plug a subdivision or two before inserting.

If you are using the plugs for subD modeling then a small amount of cleanup after the insert will generally be required.  Usually disabling "contain" in the meshMachine pop-up options makes cleaning the surrounding topology easier and faster. (I will be releasing a video in the near future of my subD detailing workflow)

Installation:
1) Install latest meshMachine addon
2) Drop the contents of the plugs folder into your meshMachine asset library which is usually is found here:
C:\Users\user\AppData\Roaming\Blender Foundation\Blender\2.83\scripts\addons\MESHmachine\assets\Plugs
3) open meshMachine plugs library to view your plugs

For more information on the use of meshMachine and plugs please see:
- https://machin3.io/MESHmachine/docs/
- https://www.youtube.com/watch?v=rrWGJ1hs3oo