Regarding recognition of the new CW9166/64/62 APs in dashboard. Please be sure that you are ordering the correct SKU - This would be the CW9166-MR, for example, to make sure that you are getting the Meraki AP.
Then you would claim them in Meraki dashboard using the regular device claim process:
Documentation for the CW9166/64 can be found here:
Installation Guides: https://documentation.meraki.com/MR/MR_Installation_Guides
Documentation for the CW9162 will be available closer to orderability.