Combine interval photos into a video with Insta Studio

I've taken a series of interval photos (360° files) with my X2, but I cant find anything on how to export them as a video with Insta Studio (desktop version). In tutorials they are either using third party editingsoftware or mentioning choices in Insta I don't get.

Like in the link below where it's explained that I should just "right click on the file thumbnail and Select Start Export, and Merge to Video in Export" - but I don't get that choice.

Help would be greatly appreciated

https://onlinemanual.insta360.com/oner/en-us/studio/export