DTX-MULTI 12 Extension is software which lets you operate the Cubase functions from the DTX-MULTI 12 as a remote controller. For example. You can operate the Cubase transport, turn its metronome on or off, and control various other functions from the instrument's front panel.
For more details, please refer the installation Guide which will be downloaded with program file. To connect the DTX-MULTI 12 with your PC, please download the USB-MIDI driver.