When you create a new dimension group for an Overstat® overlay, you set the Used in an Overstat overlay control to ON. Then, you add your dimensions to the dimension group.
For example, you want to create a dimension group for the attention map overlay that segments by browser. You call the dimension group Attention map browser and you add these dimensions:
- Browser Name
- Browser Version
By including the Browser Name and Browser Version dimensions, you can see whether the data varies by the browsers that are used.