_**If you are already a member of both Canopy MLS and MLS of Greenville**_, you may use one Supra key to access both MLS's inventory of Supra keyboxes. _Action is needed._ If your primary Supra key is with Canopy MLS, contact the MLS of Greenville and request a cooperating key, 864-672-4427. If your primary Supra key …