I see that I can link ASSETS to tickets. I can also see all tickets related to an assets I can mass edit tickets so assign assets I'm wondering if I can MASS EDIT tickets related to an ASSET if at some point there is a better solution
The best options that are available are to either:
Make use of ticket custom fields to create a dropdown list of suppliers. When a ticket is being created or has been created you can then set the supplier this ticket is about. You can find information about custom fields in this knowledge base article.
Create a ticket type for each supplier. This way each ticket that you create can have a specific type for each supplier. This will however be a lot of ticket types. More information can be found here.