Claris CAD has a 7 document limit when printing from the Finder. Normally, you can select the documents you want and choose "Print" from the Finder's File menu. Claris CAD, however, presents the message that the Finder can only print 7 documents at a time.
This is not a limitation in the current version of the Finder and most applications do not limit you to 7 documents including MacWrite II and ClarisWorks. This appears to be a remnant from an earlier version of the operating system.