1 - Initialize the installation process
Go to GSuite Marketplace to install the Advanced Summary add-on. Click the Install button once there.
2 - Proceed with the installation
Click Continue to proceed with the setup.
3 - Choose the pertinent account
Choose a Gmail/GSuite account to be used for this add-on.
4 - Allow all permissions
The permissions will be presented one by one and each one needs to be allowed for the add-on to run optimally.
5 - Confirm your choices
Make sure that all boxes are checked for the add-on to work optimally. Then click Allow.
6 - Installation successful
The Advanced Summary add-on is now successfully installed in Google Sheets. Click Done to close the setup window.