All of the above and more. One hand should be working the mouse, and the other the keyboard. CTRL+shift+L for quick layers palette
You can customize them in your work environment.
You can also see and print out what archicad ships with from the keyboard shortcuts window in your work environment
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"