The ZWD control suite is accessed by the IP address of the Pi -
No HDMI monitor is required to use ZWD - as long as you are on the same network as the Pi - simply enter on your laptop or tablet:
http://me.atxled.com

our Youtube video walkthrough
If your Pi is not yet on the network, plug in an Ethernet cable from the Pi to your router, then access me.atxled.com. If that does not work, enter the last 4 digits of the mac address shown on the pi device itself.
If you prefer to use an HDMI monitor, keyboard and mouse, you can view ZWD at: http://localhost
once you have started the main page of the Pi - you can start using the application. The web pages should be self explanatory.
The ZWD control pages | 
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