Printing 2 non-touching objects

I am attempting to print the objects shown in the attached pic. In fusion 360 I can't find a way to send them both to meshmixer. It will only show one or the other. Combine function in fusion attaches one object to the other so that won't work. How do I print non-touching objects (like the ball-bearing example for instance)?

Guy2780

Test Sleeve.JPG

It doesn't save everything shown on screen in the stl?  This is why I use Designspark Mechanical.. I did try to find you an answer but no luck.. Looks as if other people had this problem too.. Wait.. try this.. https://knowledge.autodesk.com/community/screencast/2d82db1a-e013-485f-acb6-b20262681c08

Thanks Kyle,

I stumbled on to this procedure of combining components and the video confirmed it. Seems quite convoluted compared to DesignSpark though.