feature request #7926
for polytomous key nodes a move up/down alternative method should be available
creating a new node creates always an alternative linked to the next node and the second alternative is placed behind. Alternatives linking to a taxon are always behind this initial alternative but usually the alternative linked to a taxon is on first place.
To provide this functionaluity we need a move up/down method for alternatives or when creating a new alternative it should be possible to choose between insert before or behind the actual alternative.