How do I attach a threshold rule to an element?

1. Once you have setup the rule in threshold section, click pages and open up your page design, click on the element you want to attach the threshold to e.g. simple value, grid, scroller, popup

2. Click the cog icon to configure the element

3. Click the Threshold Rules dropdown and select the rule you  want to attach to the element

4. Click Save and Publish and your threshold should  appear if the threshold rule applies