It sounds more like we need some sort of multi-stage or continuous activity which you can actually interrupt and then continue or some sort of group that all activities registered after the group tracking is enabled will fall into one bag. In diary it would be seen as one activity but it could be open and see all of it separately or merged together. To be honest, it’s not just a multi-day but sometimes I want to stop tracking the activity when I’m taking a longer break. Usually, for 30-60 min break, I just pause the watch but this doesn’t turn off GPS and seems to be draining the battery more ( and I can’t use the watch just as a watch 😉 ). The continuous activity would solve this problem.
Or simplest solution, uploading FIT or TCX files which contain the whole activity. As it has been said before, the merging can be done using third-parties ( this will include merging all the data like HR, GPS etc. ) however I don’t see a way to log activity manually by uploading the file.
@Audaxjoe how can you upload it to Suunto app 😮 ?