Air cleaner removal question

Want to get the air cleaner off so I can inspect my plugs. Owners manual instructions seem ok but I don't know which tool to use to 'loosen the clamp bolt' - it looks like an allen key job but it's a long way in. The pic in the handbook shows a socket wrench. please.

Got to be honest I am not 100% sure off of the top of my head and I am not with my bike so I can’t look.
The best that I remember to get the air cleaner off was the following I think
Undo 2 bolts above the box, both allen Key
Then pull it out slightly from the bottom which will release it from a rubber type gromit
Uncouple a small electrical sensor connector
Disconnect the small pipe
Then I think it was a cross screw to be undone on the bracket
All from memory so apologies if wrong, will check tonight tho

Ah now if you can do it that way round it will be a lot easier as the clamp screw will be much easier to access when the cleaner cover is off. I tried just removing the two screws but could not pull it off which mad me think the clamp screw has to come off first. anyway

Always glad to help Blues