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Multiple Dependent DropDowns
This version utilizes NamedRanges and DataValidations to accomplish multiple dependent dropdowns accross any tab/sheet. The gif below is a simple demonstration of how the script functions although the gif was taken for an earlier version of the code.
A Google Apps Script project.
Hot of the Presses
New dialog for Regex Searches on your Google Spreadsheets
Just made it this morning. Checkout the source here.
From Images to DataURIs
Using DataURIs so that you can now host your webapp images from Google Drive