We are currently using the Materials Import spreadsheet to add and update materials. Based on the documentation provided here:
https://community.microvellum.com/portal/en/kb/articles/create-materials-from-import-file#Import_File_Structure,

it appears that the options for material hatching are limited to values 0 through 4, with no support for custom hatch patterns via the import process.

It would be a valuable enhancement to allow a 5th or 6th option—such as 5 - "Name of Hatch"—that would enable users to specify a custom hatch directly in the import file.

Is this something that could be considered for a future update? This addition would greatly improve flexibility when setting up materials via import.