Yes, you can use PlayIt Live and PlayIt Cartwall together, but we actually recommend using the built-in QuickCarts feature in PlayIt Live instead of the separate PlayIt Cartwall application. The QuickCarts in PlayIt Live can use tracks directly from your track list, making it much more convenient as you don't need to separately load audio files. You can also configure QuickCarts to display as a separate window, giving you the same cart wall experience you'd get with PlayIt Cartwall. The QuickCarts feature in PlayIt Live can be found in the settings under File > Settings > QuickCarts, where you can choose to display it either docked at the bottom of the main window or as a separate cart wall window. This separate window can even be placed on a second monitor if you have a multi-monitor setup.