Shift + click to select and copy multiple markers not working
In Global Tracks, Markers, I have created several Chord markers. Later in the song the chord progression repeats itself (new verse). I would like to just select and copy that whole series of chord changes and then paste that whole selection to a different place in the song as I proceed with my arrangement. My problem is, I press shift and I start clicking on the markers I want to copy, but each time I click on a new marker, the previous one is no longer highlighted. Sometimes two or three will highlight and I choose the next one and they all are no longer highlighted (aargh!). I am unable to select several all at once and copy the batch. Something won't let it happen. I have searched for solutions and have tried a procedure described in a discussion about the Activity Monitor, but that did not work The procedure I'm trying to perform is best explained in a youtube video by MusicTechHelpGuy entitled "Logic Pro X - Using Markers." https://www.youtube.com/watch?v=ptVYQtQpe2E&t=163s It's at about 2:35 in.
Any suggestions? Thanks
Richard
MacBook Pro Retina