I have not used Adventr before, but I have used other similar online platforms that allow you to make interactive video content. Does Adventr allow you to connect multiple separate video clips together, or is it more restrictive like some of the competitors where you upload a single master file and the hotspots are linked to timecodes that make it seem like you are switching clips? I am hoping it's the former, as the single master upload sites do not as easily allow you to modify content without retiming all of your hotspots.
It is the former. You upload individual video clips and connect them together using Adventr. I find this method easier as well since that way you don't have to mess with finding where each clip starts and ends in a master file.