"Holds 6 chickens" = meets legal requirements of a commercial factory farm set up. That's all manufacturers need to aim for. For bantams the minimum floor space recommendations seen on here are usually double that at 2 sq ft per bird , and you have 9 birds who may or may not choose to use both...
You're misunderstanding, the "run" would be eliminated in favor of expanding this into a single larger coop. You would either need a new run or free range all day.
What this fixes is 1) your metal "floor" issue, as the ground is the floor, 2) help expand the coop space overall (you don't...
How many birds are in here? I'm a little confused if this is 6 younger birds, or 9? Is this meant to be a permanent coop or a grow out?
Unless this is very temporary I'd alter the unit entirely to eliminate the metal pan, and convert it so the entire thing functions as the coop instead of...