AS9100 RevD Process Documentation

Answer:
AS9100 Rev D does not specify which operational procedures (section 8.5) need to be documented and which do not so long as the production processes are verified to meet requirements. So, the decision is up to you; if an all-inclusive process will prevent errors and meet requirements then this is acceptable, but if there could be a problem then you should do a separate procedure. This is valid, of course, unless you have a customer requirement that demands that you have a separate procedure.
For more on what is required for documentation in AS9100 Rev D see this white paper: https://advisera.com/9100academy/knowledgebase/list-of-mandatory-documents-in-as9100-rev-d/