This can apparently be closed as a duplicate. I'd searched the Bug Reports forum, but apparently it popped up over in modding interface already.

viewtopic.php?p=666303

I was in the editor mode, with "Ignore surface conditions" enabled. Tried to place a lightning rod and got the pictured error.

05-31-2025, 13-31-33.png

I'd hoped to be able to place and potentially preview the coverage area inside a planning save.

(Yes, I'm aware that, as a workaround, I can ...

I do think this is a bug upon testing it. My steps to reproduce (assuming cheat/editor mode):

1) Place a captured biter spawner, giving it no food.
2) Place an inserter feeding it from a chest. In the chest, place some Spoilage. (Simulating expired bioflux)
3) Note: The inserter will not insert ...

Adding to this request in hopes of getting "clamp" available. If I recall correctly, "clamp" is already implemented in the scope of a noise expression, but it's not in the base MathExpression .

I was experimenting with a parameterized BP for a bot-based mall assembler, and I hoped to do something ...