CM3 library for Altium Designer

Hi!
I need a CM3 model for Altium Designer so I can just plug it into my library of single board computers. Preferably in the format (.LibPkg) and with a 3D model.

For some reason, the model (https://dl.radxa.com/cm3/docs/hw/RADXA_CM3_v1.1_3D_20210705.step.zip) is firstly monophonic, and secondly, instead of connectors, there is one solid rectangle. Does everyone have this problem?