How do I arrange my beat in FL Studio after getting all the stuff to make the complete beat?

Start with an intro (only melody and a crash at the start, with an automation for a highpass filter that rises up). Then there's the verse (or pre-drop) Here you add buildup elements (risers, drums, all that good stuff). Then there's the drop, where all your instruments are playing (chords, melody, drums, arpeggios, etc.). After that, you get to the verse (make sure to change some stuff up so it's not boring). Another drop, but this time make it more powerful, using a punchier kick and snare, faster hi-hat pattern and bigger bass. In the end, do a breakdown (outro). Just do the same as the intro, but make the sound go down instead of up. You can add an additional drop.