Adding a cadenza exceeding value of measure

Hi all. I've searched the forum and caot find a similar inquiry.

I'm currently working on Ponchielli's "Dance of the Hours" from "La Gioconda." There are a couple one measure harp cadenzas which exceed the value of the individual measures. How to I input the notes so they will display and play back correctly?

Any feedback as to whether Notion 6 can handle and how accomplished would be greatly appreciated.