Could we get a Copy Fleet Name button on the Naval Organization window?
The button would merely copy (to the clipboard) the name of the currently selected fleet.
Maybe put it right next to Rename? Or even all the way at the end of the buttons, after Delete.
Reasoning:
I do a lot of fleet renaming, particularly freighters, to keep track of which fleets are doing what, what's left to take where, etc.
My fleet names include several bits of info, and rather than re-type it all when giving a fleet orders that match (exactly or nearly) another fleet's, it is faster for me to select that other fleet, click the Rename button, copy to clipboard, close the Rename popup, re-select the target fleet, click the Rename button, paste from the clipboard, and make whatever changes are needed (often none).
A Copy Fleet Name button would save me an enormous number of fiddly clicks.