[MlMt] Keybindings and expanding threads

[John Cooper]

On 2015-02-24 10:02, Benny Kjær Nielsen wrote:

> It's because you cannot override the default behavior of right-arrow. 
> In any outline view on OS X, you can use left/right arrow to 
> collapse/expand the currently selected item and ⌥-left/right arrow to 
> collapse/expand the entire hierarchy of the selected item. It's an OS X 
> feature and not a MailMate feature.

OK, thanks. I've mapped `expandThread:` and `collapseThread:` to ";" and 
"'", and things work as I expect.

John