I start with a blank set up, new install, I am trying to set up LED, single color snowflakes.
I set up controllers and E1.31 items.
In the models area,
Click Create New Custom
Click and Drag one of the four blue corner points to make the item smaller.
In Model data click to edit, and at Cell C 3 enter a 1
At start channel enter a channel number. Select radio button in offset for None absolute
Then the blue corner points reset to larger area. I resize them to small again, click save, then go through the other models I have already made, some of their sizing points have also changed to a much larger area. Not all the models do it however.
Let me know if I didn't tell u everything