I'm not sure if this has been discussed here before but Copa does a status match to other loyalty programs. Some say they'll even do a status match to United. I opened Copa account and immediately requested a match. I sent an email to email@example.com and attached a scan of my AA PL card and a PDF of my last AA statement. They matched my AA PL to Copa Gold. It took about a week to get an upgraded level after applying. So, I now have Star Gold status and entrance to UA lounges.