@vcapone OK.....so I had to come up with model + bar substructire working on a mostly full digital hybrid over a bar. So, in the ream of convoluted hacking this might work for you.
I had to design a bar and then the hybrid over it without having a phisical model+bar to scan.
In your case the "bar" would be your "analogs" I saved the bar design .stl as an .obj Then setup the project as a ""digital mockup" on the IOS arch scan.
After the tooth placement on the arch , then replace it as a custom tooth model ( expert model) and bring in the bar.obj (or in your case analog.obj) Then deal with aligning everything properly..
Then make sure that it intersects through the tissue side. Your analogs might already go through the tissue, in my case I had to freeform the underside of the bar to pull it through. The reason for this is that the software will "hardcut" through what ever you've intersecting through the arch scan before moving on to design the model. Then when you design the model, make sure you check the box to include the pontics ( which is basically what you've added to yor "Mockup") You'll end up with a digital waxup model with an airtight mesh that's hollow and no artifacts inside for printing if needed.
I designed the hybrid, had the bar milled, then printed up some test models. Hybrid fits the model and the bar fits the hybrid. Yeah I know,..it's a long span, I got my waiver and CYA'd with the oral surgeon. Told him "there are things you CAN do, but should NOT do.
Here's your Invoice...$$
Worked for me, might not for you.
Convoluted, clear as mud, and my brain hurts!