Allow selected item GUID showing in Marker Editor to be copied

[SeparGW2]

That fact that the selected marker GUID is visible would, in theory, allow me to quickly search for it in the .xml files and allow me to correct/delete some of my orphaned markers, but the chance that I will correctly copy a 3/32 inch tall, 24 character-mixed-case-alpha-numeric-symbol string quickly and accurately is not very good.

When I clicked on the header to attempt to select it, it changed to AAAAAAAAAAAAAAAAAAAAAA==, When I attempted to drag across it, the GW2 screen panned, as if it was not part of the Marker Editor.

Copying the entire header is fine, it would be easy to edit to have only the GUID and not the Trail/Marker status.

[SeparGW2]

Possibly add the ability to copy either of the following to clipboard via right-click:

• the External Marker ID (marker editor header)
• the ICON field (which displays the path in a centered field that cannot be copied)