When using a lister-toolbar focussing a lister by clicking the toolbar is not possible. I always use it to avoid deselection when switching between dual-listers with the mouse.
Should be enabled within free space or when selecting pathbar.
Preferences / File Displays / Border:
Turn on Click on destination's toolbar only changes state (and maybe Set file display to source when border buttons are used if you want as well).
Cool, thanks.
Edit: Now I understand that option, I'll discuss a more precise german translation with H&P.
Can you enhance it that way, that there's no need to press a button twice if "change state" is activated?
Is that for e.g. changing focus from the folder tree to the file display that is already source?
No, in dual-mode. When clicking a button (e.g. "Go up"-button) in the dest-lister it's only focussing the lister, so you need to click a second time to execute the button.
Edit: Some people might want this behaviour, but when hitting a button or the pathbar in dest-lister, I would like to press also the button.
Sorry, another thing I've noticed:
- Click pathbar (so that cursor appears) in source
- Get focus to dest-lister in toolbar BUT outside of pathbar.
- Focus the other pathbar again, it's still active and focus won't be changed.
Of course this is a rare procedure.
If you don't want that, turn off Click on destination's toolbar only changes state but leave the other option on. The behaviour you're seeing is what the option does.
But that is the problem: Focussing by clicking on toolbar (empty places) doesn't work then and if both is activated, you again need to click twice on a button.
If at least one of the two options I mentioned is on, clicking the file display toolbar will make that display the source. Is that not happening?
It works like it should, but I would like to focuss by clicking somewhere in the toolbar AND e.g. open favorites-menu with one click. When optionas are tunred on and clicking e.g. on favs, the lister gets focussed, but you need to click a 2nd time to open the menu. When the options are turned off buttons works as usual, but without changing focus.
Under Preferences / File Displays / Border:
Turn off Click on destination's toolbar only changes state.
Turn on Set file display to source when border buttons are used.
You may don't understand me (in German I could explain better): With your settings it's not possible to focus the lister outside the buttons. And if I activate both options, I need to press a button twice.
I would like to have both - setting to source when using a button and setting to source when clicking outside buttons but within borders. This is not possible at the moment.
You mean on the background of the toolbar (if you create a spacer or remove the path field so there's some empty space)? That's probably an oversight, which we can look at.
Yes 
Similarly - something that's a bit different in v11 is that with the File Display Toolbar, we don't have the equivalent of these combined v10 options:
Preferences / File Displays / Border / Enable hot paths in file display border
Preferences / File Displays / Border / Only when file display is the source and the Lister is active
Now, the v11 options with the FDT don't provide distinction between the FDT itself and the location field in similar fashion that the old hot path bar had. I.e. similar to what Sasa is saying... if equivilant behavior applied to the location field as had been the case with these old v10 options for the hot path bar, I might set my options to allow clicking on one of the FDT buttons to set the display as source AND to actually press the button (like Sasa wants) but still be able to click somewhere in the location fields breadcrumb paths in order to set the display as Source (an NOT have the breadcrumb path react to the mouse click).
I agree that at a minimum, clicking on some bit of empty toolbar space should change the state... as thats just intuitively what most people might expect to happen. But it'd also be great if we could get this distinction for the FDT location field.
NOTE: On a related note... I also think clicking on empty tabbar space should change the state since those are also file display specific UI elements. Never really 'felt' necessary in v10 as we had the separation between the FDB border buttons and the hotpaths I just mentioned. But now with the FDT and what is now a regular toolbar Location field which I imagine you would want to follow normal button conventions (whereas the hot path bar was sort of a unique UI element you could logically treat 'different'), the tabbar would give us some more space to be able to switch states by clicking on.
Similarly, it seems that ALT-clicking on an empty space of the File Display Toolbar does not open the Customize dialog like it does for other toolbars.
True, although there's a lot of other places to alt-click and, TBH, we didn't (and still don't) envisage many people having empty space on the FDB toolbar as it's where the path field goes now and you'd always want that to have as much space as possible.
We'll probably look at these things anyway but, for now, if you just want a bit of space that you can click on to make the lister source without triggering anything, and without having to turn on the option which makes the whole toolbar behave that way, you could add a button with a blank icon and no command.