How to set a quarter note and a half note onto the same note neck?

Dec 15, 2019

musescore version Rev. 7684abe (Mac OSX)

Hi friends and musicians,
at first my intension: I want to write 2 voices on the same four-four time line. Voice A has 4 beats of quarters, Voice B has at beat 1 a half note and then at beat 3 and 4 quarter notes. I know the way to set 2 note of the same note heads at the same neck with turning one head to left and the other to right. But how can I do it with a quarter head on left and a half head on the right side of the note neck?
I will be very happy if anybody could show me the way.
Many thanks in advance,
Toni S.