The Dock and FCPX?

Yes, it can be changed up or down. In my case, I actually increased it, because I have no use for the Dock and I can turn it on and off with Command-Option-D. This way I never have it accidentally appear.

I am away from my mac but I will check later and tell you the command to make the changes.

For completeness, and in case you or someone wants to try it, I checked the command I mentioned:

defaults write com.apple.dock autohide-delay -float 0.5 && killall Dock

You can of course use a different number instead of 0.5 (I used 5 myself, to make a looong delay, as I'd rather not show the Dock accidentally). You can even put in 0 to have no delay if you wish.

I cannot stand the dock at the bottom of the screen for the same reason. My solution was to move it to the right side of the screen. My mouse hardly ever gets there by accident. The option for the dock location is in the settings window.

I am not aware of any repository of such commands.

There is a general method to read and write plist files using the Terminal:

defaults read rev_url [stuff]

defaults write rev_url [stuff]

where rev_url is a way to identify things using reverse url notation - like

com.apple.dock, com.apple.finder, etc

This provides a way to read or write preferences, but we need to know the correct names for each setting.

Some I have learned over time, but mostly I just search online when I need one.

For example, I searched for

defaults command to change dock delay

and boom!

If the Dock is hidden, it should not make all that difference, but I also have it on the right side.

I can reach for the Desktop with a four-finger gesture on the trackpad, and the Dock is not covering the hard drive or folder icons, because it is not showing at all 😎