I really like the look and size of the Logic markers or marker ruler (faster and better to see). I would love to have a ruler just for Songstructure with no effect on the standard markers. custom size, custom colors and the ability to "jump" to those markers.
Have a feature in the Memory location window to put a clip separation everywhere there is a memory location marker for a highlighted track.
For those of us who edit LOTS of voiceovers, I will make separations at all the memory locations (bad parts in the script) so that when I'm editing....I don't move all the audio further down stream, causing it to be off it's marker.