State - Total cases graph in deepdive should have "Select all" and "Deselect all" options

Created by: kousiksatish

Is your feature request related to a problem? Please describe. Yes. If I want to compare only two or three certain states in this graph, I have to make multiple clips to deselect each state one by one.

Describe the solution you'd like It would be more easier to deselect all at once and select one by one.