Thanks, everyone, for your input!!
Here is what I have come up with:
We are producing a prototype and are charging for time and materials. We have management level and R&D people working on this as well as our direct labor people. So while we want the direct labor absorbed as usual, we do not want the other hours to be absorbed that way( as direct labor). I thought of making a labor part number ( with a class code that puts absorbed labor in , say, the R&D expense account) that we could use to issue hours to the prototype work order, but the reporting is not as clear as the labor sequence report for our purposes, so I went with a work center with no labor cost and a sequence using that work center. This works for us as far as the producing a document that shows the hours worked by each group, (by assigning a sequence for each group). If we want to add costs to the work order we can do an adjustment as Dennis suggested by taking the number of hours reported and using a $$ multiplier for each group to enter Misc/extra costs in WO-H.
Thanks again for responding --