You should be able to just long press on the back buttton and the tag will pop up on the left side of your screen where you can pull and see all your icons that you can use for your multi screen.
Sent from my SCH-I605 using xda app-developers app
Device: Moto X Developer Edition
ROM: Stock/ Hacked Up and Modded
Past Devices: htc G1/ htc Nexus One/ Moto Droid/ Moto Droid X/ htc Thunderbolt/ Samsung Galaxy Nexus/ Samsung Galaxy Note 2