Change entity type of annotation

[arronlacey]

I find I end up in the following situation quite a bit:

I have just annotated an entity, and then I select some more text to annotate something else. The span gets entered as the entity I last used (it's still toggled as that entity on the left hand side) but if I wanted that span to be a different entity I would need to delete the annotation, toggle to the correct entity, then re-highlight.

Would it be possible so that when you toggle to the correct entity, the highlighted span and annotation on the right hand side automatically changes to the new entity? This would save having to delete the annotation and re-highlight.