Cue Grid Info

Both of my computers has Rekordbox installed, one contains old tracks and the other contains new tracks. My goal is to transfer all of my music to my new computer. I understand sync manager is able to do this but since I have a long list of playlists, I do not prefer scrolling from my primary playlists to my USB device's playlists. I prefer all of my old tracks to be combined with the same playlists with my new tracks.

I am curious if cue grid info can help me with my problem. I want to click it but I am afraid that it will erase all of my tracks on my new (primary) computer. Will cue grid info help me with my issue? If not, is there anything else I can try?