It looks like a kit, displayed as single line instruments. When I start a new document with a kit, the steps that @charles_piano gives work for me. In case it’s not clear from his video:
Enter a quarter note, which then creates quarter and half note rests after it
Select the quarter note rest on beat 2 and press O to force its duration
Alt/Opt+click on beat 3 (or just press R) to duplicate the rest to beat 3
I finally got it to work. The only exception was when I try to delete the court note on the one, it turned it into a half rest. But I can divide a half rest into 2/4 notes. Thanks to both of you!