In the current Dynamics CE UI Version (not the "New Look UI Version"), it is possible to select a value in an option set field and again "deselect" it be changing the value to "Select" what will empty the field value to NULL. However, in the "New Look UI" this is not possible anymore. Once a value from the option set has been selected it cannot be "deselected" (set to NULL/blank) due to the fact that the "Select" Option is not present anymore. I would like to have that feature back in the "New Look".