quarter rest in 8th tuplet possible?

I am trying to notate a quarter rest within an eight tuplet, but Dorico divides that rest in 2 eight rests. Is there a way to get it as in the screenshot?
Screen Shot 2017-12-07 at 17.51.10.png
I tried creating a quarter note and deleting it, but that changes it back into 2 eigth rests.
Screen Shot 2017-12-07 at 17.55.33.png

Create tuplet as usual.
Enter for caret, “o” for force duration, “,” for rest, “6” for quarter, type “y” or any letter a-g.