I am trying to get a CSE formula to work with conditonal formatting. When using CSEs with cells, you hit CTRL+SHIFT+ENTER, but it appears that this key combination doesn't register in the conditional formatting window. The alternative option is to create a CSE formula in a cell and then use that cell's value in the conditional format formula, but I'd really like to get it to work with the conditional formatting formula itself.

All conditional formatting formulas work as array formulas, so just enter the formula with enter. 

