In large assemblies, I often import complex parts from .STEP files that have many visual features such as vents or electronics ports and complex internal geometry. SpeedPak seems like the perfect solution for this, since I would be able to simplify the model while keeping references. The only problem is that SpeedPak only works with .SLDASM files. When I import .STEP files, I save them as a .SLDPRT file to add file properties (such as vendor), so creating a single part assembly from the part would allow me to use SpeedPak, but the BOM becomes more complex due to the extra assemblies. If there is a way to group the assembly and part files together in the BOM without also ignoring the other sub-assemblies, then it would be functionally what I'm looking for, but converting a .STEP file to a .SLDPRT file and then a .SLDASM file seems like a convoluted process for what seems like a pretty simple task.

What I currently do:

• Download .STEP file from Vendor Site
• Convert to .SLDPRT
• Add File Properties
• Create .SLDASM to add in .SLDPRT
• Configure SpeedPak on .SLDASM
• Add .SLDASM into main assembly
  • 3 files saved per part
  • Have to deal with unnecessary sub-assemblies

What I want to do:

• Download .STEP file from Vendor Site
• Convert to .SLDPRT
• Add File Properties
• Configure SpeedPak on .SLDPRT
• Add .SLDPRT into main assembly
  • 2 files saved per part
  • No unnecessary sub-assemblies

As far as I know, it's not possible to use SpeedPak on a .SLDPRT file. I'm curious what solutions people use for this since imported parts usually cause the largest decrease in performance.