applying hatch to demo walls

[vanderloo5]

I'm a little rusty. Trying to remember how to apply diagonal down hatch to all demo walls. I created a wall type, and assigned a coarse scale fill to it, (diagonal down). but it's not showing up.
Thanks

[DaveP]

You have to set the up in your Phases - Graphics Overrides.
Add a pattern to the Existing phase's Cut Patterns there.
Fair warning, though: this applies to EVERYTHING Existing. You can't split out the Walls separately from, say Doors