How do I remove linked objects from collections and put it into a new collection?

I have some objects that I’ve linked into my scene and for some reason ‘M’ is disabled/greyed out. The only way Blender 2.8 will let this happen is if I manually drag each object one by one in the outliner. It’s not an acceptable method for complex scenes. Is this a bug? what possible good is it to stop me from conveiniantly moving linked objects around like any other object?

How do I put all of the selected linked objects into the collection of my choice in one movement?

Kind regards,

Simon.