Eileen's got that right! It's all about dancers and keeping the groove going.
Since your left hand is free thanks to the built-in chord progressions,
you can put it to work with the sliders and knobs. DJs add and subtract individual parts to add variety or to build/release energy (tension).
Another trick is to manipulate the filter resonance and cut-off on one or more parts. Or, apply and manipulate a DSP effect (delay, isolator, lo-fi, etc.)
Try adding audio snippets via multipads, e.g., "We come in peace for all mankind." Space themes are popular.
EDM has a musical language of its own, mainly to drive dancers into a frenzy.
(Unless you're into chill or downtempo).
All the best -- pj