Chromecast Youtube Queueing on iOS

Hey folks,

I hope this is the right forum for this question. I had a YouTube party tonight and I was queueing videos alongside my friends on our android devices.. However my iOS friends kept interrupting the playlist when I kept telling them to queue the videos. They said they didn't know what I was talking about so I took my phone to show them, but when I looked at their phones they had no options to add to queue. Has anyone else experienced this?

Many thanks!