Can I force internal notes for a specific workflow?

Hi, 

I would like to create a new workflow when an agent creates a new ticket from a predefined form (visible only for agents).

As the agent has to fill in the user's details - I would like to ensure no public comment is triggered along the ticket lifecycle.

I noticed this article, but unfortunately, it doesn't answer our need as it changes all tickets settings

Can I force internal notes only for a specific form?