I made this script to list all markers and regions in project (only for Vegas7).
A double click on marker’s line, move the cursor to this marker (like in Sound Forge).
In Vegas there is a way to move cursor to marker by pressing the keys 0 to 9, but with a lot of markers this is not very handy.
I would like to list the markers/regions by their number (not by their index), but apparently this is not possible.
I haven't tested this myself, but it seems the baselist of markers is a normalized one. A wild guess would be that whenever you request an enumerator from Vegas, you get a normalized list. If you mess around with it, it might not retain normalization -- but the next time you request it, it will be normalized.