Go to Tourfic Settings > Settings > User Options
This option is for managing capabilities of the Vendor and Manager user role.
There you can see Vendor Settings and Manager Settings tabs. From Vendor Settings tab you can set vendor role permissions. Vendor Can Add Post, Vendor Can Add Taxonomy, Vendor Can Manage Options. From Manager Settings tab you can set manager role permissions. Manager Can Add Post, Manager Can Add Taxonomy, Manager Can Manage Options