Location markers, loop range, etc moves on tempo change

At the top of the editor timeline are our markers of various types. When changing the project tempo the markers are locked to the secondary clock (HH:MM:SS) rather than (as would seem more logical) to the primary clock (beats and bars).

I’ve gone thru the application preferences but can’t see how to change this.

Click the right mouse button on the marker > find “Glue to Bars and Beats”

too easy! thank you!