Yes Doug, it hides the left hand column ie where your library name(s) and its events are, so giving more room for the list of clips if you’re in a particular event and marking them up.
For some projects and workflows I find it quite useful.
I can do the same thing with a mouse-click of course, and the tool tip still displays as ‘Show or hide the Libraries sidebar’, but it always used to be set as the Command-Tilde in the Default set, and in my own edited set I had left it like that.
It no longer works, but also it doesn’t appear as an option (as per my screenshot) so I CAN’T remap it to get it working again. Alphabetically it should be showing between Show/Hide Keyword Editor and Show/Hide Marked Ranges. (ie Show/Hide Libraries sidbar) – Perhaps Ben can confirm this?
I assumed it had disappeared in the latest update, but Ben is on the same versions of OSX and FCPX as me apparently, so the plot thickens.
I’ve tried switching back to the Default commands, but it’s not working there either, AND it still doesn’t appear as a customisable command in the Command Editor, which is the real mystery for me.
I wondered for a sec whether there might be something wrong with my overall keyboard mapping or even the tilde key, but I can type tildes in TextEdit, and all keys with shifts and options seem to be doing what they’re supposed to, so I’ve ruled that out.
Obviously I’m not alone if Doug can’t see it as a command option either. What a strange quirk (and a bit annoying). I can live with using the mouse instead, but I’m really intrigued why it’s gone.