Hatch folder Rhino 7

Could someone please tell me where the hatch folder is so I can permanently install additional hatches or provide the method to do so.
Thank you

Rhino 7/Windows 11

There are no Hatch or Linetype pattern folders.
These definitions are stored as Document Properties in 3DM files.
They are initially populated based on the Tempate file you used to start the model.
There is an option to Import patterns from 3DM file or from AutoCAD “PAT” files.

Best practice is to collect the patterns you use, start a new file and import them. Than add the other Document Properties you use like layers, annotation styles, etc, then save it as a Template file.

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Thank you John