The ability to create a list of display colours and rename the colour(s).
I know you can sort of do this using Rendering colours but would be so useful in the display pallette.
Also have preset folder/layer names. I frequently name folders using the same names. Would be great to have a list containing all the common names. Pushing the boat those names have preset colours.
In a new file, set up the layers that you want, with the colors that you like. Save the file as a template and start new projects from that template. You can also import that template file into existing projects.
-wim