Can you include an `alert` with a sound within the `end` event?

Q1. Can you place a sound on an end event? That doesn't seem to work for us

Additionally: Q2. Is there any way that after you send the end event, still have the Live Activity remain on the Dynamic Island until the dismissal-date?

Currently when an end event is sent, it's abruptly ended from the Dynamic Island without any sound. Users are confused until minutes/hours later they see their Lock Screen.

Can you include an `alert` with a sound within the `end` event?
 
 
Q