How is making your own MIDI file from a blank state on a sequencer any different from creating your own style file from a blank slate on an arranger?

Surely the vastly better display and editing capabilities more than makes up for the inconvenience of having to do a quick USB transfer before you can try it out in arranger mode?

And especially with Intros and Endings, all they are is MIDI files, pure and simple. Linear, one shot sequences. How is it easier to make those on-board, with next to no display and editing power, than to use a sequencer? You DO use a sequencer, don't you?