Adding song to hoster

[pselph2528]

I use Hoster in the shows that i do, not for karaoke. the question i have is that i have 2 external hard drives, and 2 laptops that i use in my shows. My wife uses 1 , and i use 1. We each have numerous play list files in each laptop. Her external HD is a copy of my external HD, when i had appox. 54,000 songs. Since then i have added appox. 20,000 more songs to my external HD. How can i add these songs to her HD with out effecting her existing playlist files? The additional 20,000 songs have been imported into Hoster on my laptop and are KMA files. Both laptops are using Hoster 3320. Thank in dvance for any help you can dive me.

Paul