With what command can I do this? I know how to make the changes from the GUI. Is there a way to capture settings made that way to feed into the commandline command?
There is a partial answer here:
The command to use is 'gsettings` and the actual settings to use you can find by using:
dconf watch /
in the terminal, while you adjust the settings. You get a bunch of statements like this:
/org/gnome/desktop/wm/preferences/theme 'elementary' /org/pantheon/desktop/gala/behavior/hotcorner-bottomleft 'custom-command' /org/pantheon/desktop/gala/behavior/hotcorner-bottomright 'none' /org/pantheon/desktop/gala/behavior/hotcorner-custom-command 'xset dpms force off'
You want to reformat these lines into commands like this:
gsettings set org.gnome.desktop.wm.preferences theme 'elementary' gsettings set org.pantheon.desktop.gala.behavior hotcorner-custom-command 'xset dpms force off' gsettings set org.pantheon.desktop.gala.behavior hotcorner-bottomleft 'custom-command'