It is definitely possible to mix AND master in FL. For the basic mixdown you could just add the default FL multiband compressor to the master bus and tinker around a bit till it sounds halfway decent.
For the real deal: Step 1. Mix your track to a bit lower than commercial levels. It sounds contradictory but I've found when mastering a track that's already at commercial levels the compression tends to cause louder instruments to butcher the softer ones. Step 2. Export this track as a lossless file .wav and then open up a new project and insert your track as a sample. Step 3. Put your mixing/mastering effects on your master bus. I suppose the default multiband would be acceptable but I use Isotope 4 and a few other saturators and noise reducs.
anyone here who uses fl studio do you mix your beat in fl? im wondering it because every time i try to mix a beat when i export the beat all the levels go wrong.so if you mix in fl how you do it?
When you export your beat's from FL STUDIO, export them as a wave file. Then using a file converter program which you can find anywhere for free, convert your beats back to mp3! hope I helped!