I know I've posted a similar request before, but with all the work that has been done on the tagging panel for 3.1, I thought I'd do a mock-up of a possible way to implement this.
What I'd like is an easy way to change the placement of the custom tags in the 'Tag (2)' tab, that also updated the links in virtual tags and other naming and display templates.
I was thinking something along the lines of the toolbar configuration menu.
Opening the preferences menu would give you;
and selecting 'Arrange Tags...' would open a panel like so:
where you could change the custom tag display names as you can now, but also change the position by altering the number and hitting 'Tab'. You do this in the current toolbar menu to change the order there.
As MB doesn't save the display name into any templates, only the reference of Custom1, Custom2, etc, MB could then just alter the number in the templates and all the links would be updated.PLEASE VOTE ON THIS IDEA IN THE POLLS SECTION HERE