For the sake of this example, cell C2 is the cell I want to fill out, and depending on the value of A2, i may or may not want to use data validation lists.

If A2 is True, I want C2 to refer to a list, but if A2 is false, I want to make the cell open to any input. Is this possible? I've read through all of the tutorials on contextures and haven't found something quite like this.