How create cycle markers in VST Live tracks?

In the VST Live manual I found nothing about creating cycle Markers.
Here sometimes they appear (and then can be changed), sometimes they miss, but how and with which keyboard shortcut are they created?

never had that ever, also not reported.

Devices/Actions and Shortcuts/Transport/Set Marker 1 (and 2)

Thanks, that solved the problem!

Perhaps cycle markers should occur in the manual, with the two hints you named above.