Very nice -- thank you, Florian.
A little more request/suggestion: to split this local menu into multiple columns. To the bottom of the screen I have space to see 31 field names in list, but I have ~150 fields...
By the way: the situation with left Tag panel is the same. Will be nice, too, to show all fields, in more columns.**
Going on: include in this local menu the names of panel/columns user-created config files, for one-click solution? It will be perfect...
** Or, the other solution (for both Columns and Tag panel): submenus -- see here.