Guide

1. Click on the 'Add' icon to create a new field.

2. After that, enter your desired 'Field Name' into the provided input field.

3. Search for 'Rollup' and select it as the Field Type.

4. Choose a specific field in the current table that you prefer to use as the 'Rollup Source'.

5. Select a specific field in the linked table that you prefer to roll up with the previously nominated source.

6. Enter the Rollup function you specifically want to use.

7. Finally, tap 'Create Field' to save the changes and activate Rollup in your Airtable table.