Objective: To transfer rooms and devices from one sync portal 'organization' to another:

 
Unfortunately, It is not possible to create an organization for a Sync account that has already had a organization created for that account. What you would need to do is create the new org with a different email address and then invite your existing account to join that organization.
 
You can also invite the Techs who are using the Profound technologies organizations to the new organization as well.
 
Here is the multitenancy pro support page: https://prosupport.logi.com/hc/en-gb/articles/1500004226301
 
Here is the Sync admin guide as well: https://prosupport.logi.com/hc/en-us/articles/4814818290199
 
As for transferring rooms from one organization to another you would have manually remove the Devices from one Room and then add them to the Room you want to use them with in the other organization.