Ah great yeah now I get it.
I really liked this function in ProTools for Foley recording, when I was still doing that.
I don't know, whether you've tried that yet, but with the pressing of cmd+L (or ctrl+L on win) the Loop markers loop the highlighted section. I know it's not really what you're looking for, but might offer a convenient workaround for now. Also you can use the Num Block to control reasons Transport (which I find to be quite nice actually) and if that doesn't cut it (in case you have no Num Block e.g.) you can also use the Keyboard override function, to map some of your own shortcuts.
Which is pretty handy. I have All Solo Off and All Mute Off assigned to an easy shortcut (shift+1/2) so I reduce the confusion about whether I used solo in Mixer or sequencer.
wrong thread, I know. sorry