Set focus between tree & lister

Is there a way to set focus between tree & lister with Tab key.
There must be a way to cycle focus Foldertree & lister.
I was trying this command but doesn't work. could someone help me?
set FOCUS=LeftTree,Left,Toggle

It does this by default already, you don't need to configure it.

@nelly:

What you can do is setting hotkey for "Tab"-key to this:

Set FOCUS=Tree Set DEST=Toggle

This keeps Focus on Tree and Toggles between left and right pane.
Pressing "Ctrl-Tab" keeps Focus on Lister and Toggles between left and right pane.

By default, Tab cycle all fileds (pathbar, tree, both pane) without Preferences > Listers : Use Tab key to switch source/destination in dual-display Listers. Tab key doesn't switching focus only between Tree & pane. :frowning:

[quote="kundal"]

Set FOCUS=Tree Set DEST=Toggle [/quote]
Thank you for the hint but this keep focusing in Tree like you said. I wanna navigate via the folder tree then come back to the left pane(Source display) only one Tab key.
If turn off Preferences option, I can do this with "Tab" and "Shift+Tab" or using two commands (Set FOCUS=Tree Tabkey / Set FOCUS=Left Shift+Ttabkey).
I hope to do this with only one hotkey....could you please another advice?

Does anyone have any ideas about this? please~