Units
From Protemos Wiki
Go to System => System values => Units.
On this page you can add, update or delete any measurement units you need:
"New unit" – opens unit creation menu.
"Update" – opens unit update page.
"Delete" – deletes the unit.
Note: you can’t delete units, that you have already used in the project ("Yes" in the column "Іn use" and no "Delete" button).
