Allow evaluation of angularity and perpendicularity vs 3 datums and MMC/LMC modifier to said datums with ISO1101 settings

Hi PC-DMIS team and users.

I have time to time encountered requirements that call out for angularity and perpendicularity versus 3 datums. Since PC-DMIS currently doesnt allow this, i have researched about it with my local PC-DMIS provider (Hexagon Sweden) and my employers ISO experts, who are part of the ISO committee. According to both Hexagon Sweden and the mentioned ISO experts, both perpendicularity and angularity, although not very clearly described in ISO1101 currently, are fully intended to be used with a complete datum system such as A B C, which is confirmed with the people who participated in writing the current version of ISO1101.

It is to my understanding that this would be equal to, or very similar atleast, to be using surface profile with a complete datum system but  with the OZ modifier applied. This is my current workaround when i see such requirements on flat surfaces. But when the requirement applies to a bore

or a shaft, this workaround no longer works and i have no proper way to do it.

In addition to implementing a change like this, a yellow text warning, similar to the warning text to [DF] modifier could be used as soon as the 3rd datum is defined. Where the text implies that a 3rd datum for angularity and perpendicularity is not clearly described in ISO1101, and also asks the user to consider if this is really the intended requirement for the feature, or something along those lines.

In addition to this, bring back the ability to add the LMC and MMC modifier for the datums used for the angularity/perpendicularity evaluations. There is nothing stated that prohibits this in current standards. It is allowed for surface profile with OZ modifier, so after all, why shouldn't it be allowed to be used for angularity and perpendicularity. 

If you need any further clarification or explanation, im happy to fill in. Thanks!

Below are 2 example pictures from the same technical drawing.