On main menu, click “automation” and create a new automation from scratch.
You will create two entry points. One that will mark a the last date of a reading of an email as a “last interaction date”, and one that will do the same for any link that was clicked.
At the top of the automation workflow, click “Add a new trigger”.
Search for the trigger “open/reads an email” and click on it.

In the next window click “campaign”.

Then select any email, any list, multiple times.

Now create another trigger, this time for clickers.

Choose any email, any list, any link and run multiple times.
Name the automation and remember what you called it:)
Save and exit.