arbitrary values in management-function-set tables

Is there only a fixed set of values that are accepted for entries in a table defined by management-function-set (e.g. "M", "O", "NA" which renders as "-") or is there a mechanism to define arbitrary entries that can be used? For example, the STIP module uses "C" (conditional) and "CM" (conditionally mandatory). Since it was unclear whether those were supported, the management functions table was done in HTML in the interest of time. However, this information is needed for potential future revisions of the module, or for other future docs that use different abbreviations in the table.

Alternatively, it may be the case that "C" and "CM" are the only entries that would need to be added from what currently exist, in which case they could just be added to the baseline of usable values.

Start at the management-function-set table transform and inspect how values such as M, O, and NA are currently handled. Compare that behavior with the STIP module's C and CM entries; done means the supported-value behavior is documented or the needed entries render correctly without the HTML workaround.