To do this all you need to do is click on the track and on the box on the right labeled FX, change the number to a free channel on the mixer.
In the image below, you can see we’ve connected this track named “Lex808_1” with channel 9 in the mixer. This is the most important part of exporting stems in FL Studio and you should do this slowly and carefully. First thing you need to do is make sure each track in your song is connected to a separate channel in the mixer.
