Where did "Set to Region" go?

I have an audio file in which I have created regions. In the past I used to right-click on a region on my timeline and choose “Set to Region (region 1, region 2, etc.)” from the list and I could quickly try different regions in context. That seems to have disappeared for me and I can’t find it anywhere.
Any suggestions?

Thank you!

This should be at the top of the Shift + Right Click menu if the Audio Event has at least one Region set.