How to set up an Instant Action: Click

1. Navigate to Integrations > Instant.
2. Select "New Action +"
3. Add the URL of the webpage of the button or link
4. Select: "Click"
5. Add the action element's CSS selector (see below)
6. Hit save and you're done!

How to find CSS selector

In Chrome, right-click on the element and select inspect, hover over the HTML tags and find your desired element (it will be highlighted) in the source pane then (right-click) > Copy > Copy selector.