BurrMan - You are correct that is exactly the case regarding the multiple stl requirement

Mike - As BurrMan points out I need the multiple stl files as my printer prints in multiple materials at once and when I import a single stl assembly there is some overlap where shells touch from the components that share a boundary with another shell. Objet studio just lumps everything together and cannot separate the shells internal to the program

Michael - That is exactly what I needed, thank you for your help. I will try this out when I get to the shop this morning and confirm it works. I will also post the result of the print as well.