Editing multiple object's data + "Emulate 3 Button Mouse" option

How can I use this feature https://youtu.be/Md8LColKT5U?t=4m36s (@4:35) but with emulate 3 button mouse setting enabled? is there a way I could change the hotkey from alt+left click to something else?

This works with emulate 3 button mouse

Only start holding down the Alt key after you have moused pressed on a value