RE: Entering Production by Work Order and generating Pallet ID's One at a time
There are many ways you can accomplish this, but they are all going to rely on the proper configuration, which is going to be a reasonably in-depth conversation to understand what's configured today, what you want to happen, etc.
It sounds like you are using Mfg Execution. Your feedback in Job registration is posting a Job Card journal, and that's causing an RAF journal, which is generating your Pallet ID's.
You can post Job Card Journals for the last JOB in each production order in mass at Production Control -> Journals -> Job Card.
You can post Report as Finished (RAF) journals in mass at Production Control -> Journals -> Report as Finished.
You can also use the Report as Finished journals in mass at Production Control -> Periodic -> Production Orders -> Report as Finished. This path gives you a Select button so you can build a query to figure out what to RAF, and you can schedule this to run in batch at some interval.
Again, you can automate this as much or as little as you like, but you should fully understand the business process before you make changes. Bring your cost accounting group, production, and materials control group all into the conversation.