Importing gpx routes

[Prairie 36]

I deleted all routes I had in OpenCPN in the Route & Mark Manager. I have a gpx Route File folder under documents on my computer. When importing these gpx routes back into the Route & Mark Manager from my computer's Route folder by highlighting all the routes; multiple routes with the same name show up. How can I correct this. Importing a route at a time is a little tedious. As always, thank you for your help and pointing me in the right direction.