Dodger – that’s fine, but your O/C runs the risk of playing catch-up if those Owners complete the installation of their louvers before you commence “litigation”; which as indicated by the costs to participants it’s actually not by the way.
The process is largely informal particularly with Mediation where the cost of proceedings to the Applicant is around $80, and less so with Adjudication where the fee to seek Interim Orders is around $100; you rarely if ever see real litigation at those rates!
Here’s some more lite-reading re the workings of Mediation and the NCAT.
Good luck with a resolution!