F.e. add these options to the right mouse context menu in the album view

When processing a large list then you might’ve thought that the releases Albumname and Albumname (Bonus) belonged to each other but after manually matching them with a single release, they might turn out to be 2 completely different releases.
As a workflow, instead of manually splitting the two merged releases it’d be easiest to move everything back to ‘clustered’ so you have the 2 separate clusters again. Currently you can only do this by dragging the releases back to the main Clusters (N) tree item, which means you have to make sure that that main tree item is scrolled into the view. It would be easier if you can right mouse click to move all files under a matched album back to the clustered view