Can you be selective with what renders in Lightmass?

Is there a way to select an item or more and render only those maps?

For instance, say you baked a livingroom scene that took an hour to render and then moved a vase on a table.

Can you select the vase and table and rerender only that part of the lightmap?

At the moment, no. This is because many other objects can be affected by the that object which is why it decides it needs to render everything again.