Dear Community,
I'd like to limit the choice for Customers down to specific values appearing in dropdown lists / filters you can use in Help Center => Requests:

The question is: where can I tick off the values in "Status" and "Request Type" to limit Customers' choice from the following 5 fields:

..down to the ticked 3 fields?:

In other words: In Help Center I'd like to hide from Customers the fields "Investigate a problem" and "Create a post-incident review".
Is there any possibility to do that?
Thank you in advance for your reply