I needed to add circlips to an assembly. I used the addin toolbox groove creator to add a ANSI B27.8M - 3FM1-6, C Type Retaining Ring. All of which worked perfectly. The problem comes in when I try bring in the ANSI B27.8M - 3FM1-6, Circlip. When I drag the circlip onto the shaft Solidworks complains. See the screen shot.
Also I would like to know whether there is a better way to annotate the groove in a working drawing. I'm currently using the smart dimension tool.