Features

• ignores everything before the last “:” on a line (e.g. for labels)
• might work for a few outline types
• can evaluate an expression by hitting “Ctrl-<Equals>”

e.g. you can type “something: 123*455<Ctrl-Equals>”

NOTE: After enabling the plugin, you will probably have to restart
zim to actually use the hotkey, as the “zoom in”/Ctrl-Plus will interfere.