You can create a set date range from the left hand panel (purple tiles). It would be great if we could create this set date range from the date selector in the top right hand corner by right clicking. (We can right click on so many elements except the date selector)
I find exploring data around date ranges happens by using the top right hand date selector. But exploring gets tedious when having to re-create a set date range (that you have already selected) in the bottom left hand corner.