AFAICS, and after few tests, it’s a mixed situation which deserved the few observations below, I think, after having created three cycle markers (126.96.36.199, 188.8.131.52, 10.1.1.0, all with a 184.108.40.206 length) in the Project>Markers (ctrl+M) window :
- Without any marker track in the project, the Transport>Goto previous/next buttons work, both for the start and the end of each cycle markers created.
- Same thing with the Zoom horizontal popup options : we are able to zoom accordingly to a cycle marker position and length, using the Marker <n> options.
- Also, the Recall cycle marker <n> key commands work, as well as the marker area of the transport bar, this, even if there is no marker track.
Beside this, there are two key commands related to the creation of cycle markers, and these work whether a marker track has been created or not :
Marker>Insert and name cycle marker (opens the Markers window),
Transport>Insert cycle marker (add a cycle marker with the same settings as the ones used for the previous cycle marker created).
So, and at a first glance, the whole cycle marker implementation seems rather clumsy but overall, the whole thing works as one could expect. IMO, the key is to create at least one marker track, though : the whole cycle marker implementation works in a much more intuitive way with it. It can always be hidden if it goes in the way after the needed settings have been done. FWIW…