Static Scene

[Skiman]

I am currently using a 32 channel triac controller board to control house lighting in a DMX stage lighting system.  I am trying to figure out the simplest way to turn on the house lights (with a wall switch) when the dmx system is off / down.  
 

my thought is to create a “static” sequence and load it into the controller as “stand alone” and then trigger the stand alone sequence with a wall switch.

A couple more questions:

If I use this method, will loading the stand alone sequence cause any issues with my DMX use then the trigger is “off”

I have never used the sequence software.  Is it difficult to create just a simple “scene” with basically all of the circuits on at 100%

Is there a simpler way to just connect a manual switch to the controller board turn all the circuits on?

Thanks