Note stem crossing from bass staff to treble

I am transcribing a Schubert song. In the last two notes of the last measure (piano part), the right hand is supposed to play notes that are in both the treble and bass staves. This is indicated by the stems for the lower notes in the cord reaching down to the bass staff—the stems of the lower two notes of the chord extend across the space between the two staves (see attached screen shot). How do you do this in MuseScore 3?