I'm creating a competency board in which tickets are assessment forms for people's competency. When someone's competency is due, the ticket will be moved into the status of "upcoming assessment". And when their supervisor is working on filling out their ticket, the status goes to "in progress".
An example of such form is this screenshot:

Right now, I'm creating custom fields of each line. For example, a custom field is:
"Pre-amplification: DTS" - Checkboxes: Competent, Not competent, Not applicable
I can't think of a way to group A. Sample preparation and B. Assays separately.
Any ideas on how I can create a ticket that contain these information in groups?