A walk or group event now finds an existing photo album when the album was created against an earlier copy of the event, or when it lives under another content path than the default photos folder. Group events use the same album tools as walks: if an album exists, the event cover becomes a swipeable strip of those photos. After the event has started, organisers and members can create an album, add photos, or edit it from the event page.
Create album and Edit album open the guided photo workflow only. They no longer turn site edit on. If you already had site edit on, it stays on. Walk leaders were already in this world.
System Settings lets a group list more than one album path: the first line is used for new albums, and extra lines are searched when linking an album that already exists.