Attribute to differentiate functions visually and exportable via a query

We would like to have some attribute in ARIS process steps with a double function:

• That allows us to differentiate visually the steps from others

• That is exportable via query

Once a function in an EPC is marked as critical in the attribute, a symbol appears in it.

Ideally we could have multiple options. The easiest way to picture it is something like changing the color of some of the steps and being able to export that as an attribute (see screenshot in the attached file)