Multiple Batch Numbers for a single FG assembly.

I'd like to request the option to have multiple batch numbers for a single FG assembly.

We assign batch numbers based on the expiration date of products and the date it was produced.

 And if a single FG assembly takes 2 days.  We would have 2 different batch numbers for it.

So right now there isn't a "clean" way to assign the batch nubmers.

Right now, we have to just assign 1 batch to all products that were produced, then go do an inventory adjustment. This can be very tedious, and not easy to follow.