The HTC One has a marvellous feature whereby it automatically creates a 30s video highlight of an event. But what if you want a 60 second video.
Go to the event in the gallery app. Long press on the event, select split and select half of the items. Give the event the same name but just add 2 after the second one. Now you will have 2 events of the same event both of which will get it’s own video highlight.
If you want to combine an event, long press the new event and select merge.
It’s as simple as that.