Currently if one of the time options is selected, Pester will not let you select an input field from the other with the mouse without first selecting the other radio button. For example, if the "in" radio button is selected, you can't use the mouse to select the "at" time or date field with the mouse without first setting the "at" radio button. It would be easier to just be able to click into the "at" time field and have the "at" radio button be set automatically.
(This is analogous to the ability to select the "Display ..." checkbox just by clicking on the "Display" text itself.)