How to choose Traktor Version

Hi, on my Mac I have installed bot Traktor 3 and 4 version.
Now I have just synced my Lexicon library with Traktor but it synced only with Traktor 4. How can I choose to sync with Traktor 3 too?

Thanks in advance

Lexicon always uses your latest Traktor version. If you want to force it to use a lower version, it should work if you rename the Documents/Native Instruments/Traktor 4... folder temporarily so it can’t find it. It should default back to Traktor 3 if it is also installed, or it will ask where your NML file is