Need help with ClipboardCopying

I'm working in Draftsight 2018 for Mac, the beta version. I use it for basic one line electrical drawings. I'm trying to copy from one drawing to another. I was able to do this in the past, but it seems like the new version does not allow this. I'm trying to use the clipboardcopy command, but I can't figure out how it works. I can't even copy to the clipboard then paste in the same drawing, much less to another drawing. Please help. Thanks.