Sorry in advance for the basic question, but it's got me tearing my hair out.
When in the standard dual-pane mode, I press 'w' to get a preview directory tree on the opposite pane. Then I can 'shift-tab' to scroll up and down in that pane. But what was the keypress to make it so the lines of long filenames do not wrap around (so I get a cleaner view of the tree structure). I did it once after seeing it on some forum, but I cannot find it again, and in all of the documentation the word 'wrap' is used in a completely different context.
Thanks again, vifm is actually amazing but I guess it's hard for a vim newbie like me to actually find the answers I'm looking for in the documentation itself.
'wrap' option is what you need. In sample vifmrc toggling it is mapped to ,w. To toggle it manually do :set wrap! or :set invwrap.
Ah, that's what it was. When I hit comma, the corresponding menu disappears too quickly to read so I wasn't able to see it.
Much appreciated :)