For structures with Physical Models, any addition or modification to the Physical model seem to cause the Analytical members to RE-NUMBER.
This causes the Groupings (using Analytical Member numbers) to REQUIRE REGROUPING.
This is acceptable for simple structures. However, for complex structures, this is quite tedious.
My questions would then be:
1. Is there a way to update the grouping to consider the physical member number?
2. What are the cases on which analytical members renumber? (So we can try to avoid it)
3. Is there an option for analytical members to not renumber? (For example, additional analytical members would just follow from the last number used. At least, only the new member numbers need to be added to the group definition list)
Thanks