What do I do in the confessional?

Hint 1 of 6:

Well....

Hint 2 of 6:

OK, seriously, if you have discovered the elevator read on:

Hint 3 of 6:

You have found the entrance to the Hounfour, so

Hint 4 of 6:

you should leave stuff here so that Mosely can follow and find you.

Hint 5 of 6:

Leave the signal device under the bench.

Hint 6 of 6:

Remember Mosely has to operate the elevator.