Now that the hex in the pattern command system is broken, maybe this is feasible? :
a new pattern command which sets a marker, visible for example when you open up a rendered song in 3rd party software like a .wav editor or video editing software.
Currently Renoise places such markers at every pattern start, which already is great & handy, but it would even be better if you could set these markers at your own intervals imo.
I often post-process my Renoise tracks in a wave editor and like to be able to have more control where markers are placed;
…to optionally not have them at every pattern start, like how it is done right now,
…be able to use a new marker pattern-command in the pattern editor to set them at free will.