Create a MULTIPLE Selection Drop-Down in Google Sheets with Apps Script! 🏷️
In this tutorial, you'll learn how to create a multiple selection drop-down in Google Sheets using Google Apps Script! This powerful technique lets you select several items from a drop-down list, automatically building a comma-separated list—without duplicates (unless you want them!). Perfect for advanced data entry and tracking in your spreadsheets.
We'll cover:
Setting up your options table
Using data validation for drop-downs
Writing Apps Script for multiple selection
Preventing duplicate entries
Customizing for your needs
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