Quite a few months ago I created a spreadsheet where:

The content of cell A1 was driven from Data Validation pulling information from a defined list on another spreadsheet.

The content of cell A2 was also driven from Data Validation but it's list content was defined based on the selection made in cell A1.

Basically in A1 you could select 1,2,3,4 or 5 from the drop down list and then in A2 you could select a,b or c if A1=1 and garage, brick, cat, mouse if A1=2 etc... etc... etc...

I forgot how I did this. My problem is that if I select cell A2 and select Data/Validation it won't let me see what custom formulas or what have you that I used to restrict the list content for this cell. I get the error message "The selection contains more than on type of validation. Erase current setting and continue? [OK] [Cancel]".

Is there an alternative method to determine the cell Validation restrictions? If not can someone give me a hint on how I originally accomplished this...honestly it was pure luck when I got it to work the first time.