Super Arp
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This command will make an arpegio from all the notes written on that line
Hm, from an arpeggiator I would at least expect feature like up/down, range and random mode.
It’s not that I dislike the idea, but perhaps it should be called “Simple Arp”? 
Satobox suggested a more traditional implementation like this:
https://forum.renoise.com/t/native-arpeggiator-idea/32567
Living inside the instrument, it would work equally well for programmed notes and live playback.