Considering Airtime...Can I import my playlist?

I currently use a windows-based Radio Automation and Auto Playlist generator for my Internet Radio Station.  I think Airtime could replace my station automation software but I don't see a way to automatically create a playlist.  Is that correct?  With my current software, I setup folders for my genres/categories and put my MP3s in that folder.  My auto playlist will grab titles making sure not to repeat a song within x hours, not repeat an artist within x minutes and etc.  Can Airtime do this?

If not, could I create my playlist (m3u) in my current software and then import that playlist?

Thanks!