What are class modifiers
Class modifiers are designed to support options such as PAX indexing in SCCA-style
In Autocross the class modifier is a secondary designation that is appended to the class in certain reports (such as timing & scoring) and can be used to provide additional class granularity
When output to timing and scoring, these fields are often concatenated together so they will appear something like "PAS" for "Pro/A-Stock".
For Solo/Autocross groups running SCCA rules, a copy of the 60+ core SCCA classes is generally desired. You would add indexed classes (such as "Pro", "Ladies", "Street Tire", etc) as normal Classes and not to the Class Modifiers list.
You may have as many class modifiers/PAX defined as you wish. Modifiers may be enabled or disabled on a per-segment basis so modifiers that are not appropriate for a given event or portion of an event cannot be selected by a registrant.
We have several validation rules available to limit which class and modifier combinations are allowed.