In a future build I for one would like to see the mid fixed shelves named something different than shelf.It is confusing when labeling parts for assembly later.
I don't know if this is what you are looking for, but when in the shelf editor
higlight the shelf in question and right click. Near the bottom you get the choice 'User part name'. Click on that and name your part. When you nest the cab and double click on the sheet where the shelf is cut out of, you will see the name reflected there. HTH
The user part name works out well for me. But a different name would probably be better. Mid shelf or stretcher. I adopted the name stretcher because I make my \"midshelves\" the same sizes as my front and back stretchers. Just makes sense to me. But every one has a different opinion about their food.
If you don't want the part cut for example or chamfered 45 deg. Just use this part name to indicate this to the cut man if you have table saw cut methods. Just another form of comunications to the shop.