Inserting existing class into project

I am using VB 6.0 with Sourcesafe 5.0

When Sourcesafe was not installed I was able to right click in the project explorer window and then choose 'add' and then 'file' to add an existing class module to my project. (I also think I had 'Class' as one of the options too.)

Now with SourceSafe installed that option seems to be gone. So, I can't figure out how to add an existing 'class' module to my project.

Oh, I have gone into the project (VBP) file and manually edited it to add the class, but this is prone to error, and could invalidate my project.

The only thing close that I suspect is correct, is to use the Visual Component Manager(VCM), but we share these classes, and I would prefer to keep the class files on our LAN drive, and the VCM seems to be pretty slow when the database for it resides on the network LAN.

Is there something I am missing? Or is this the way it is suppose to work when VSS is installed?

Thanks in advance.