Unisphere manage multiple arrays

I have a customer who has 3 vmax arrays. Each one connected to separate SAN network. The customer is asking for a solution to manage all 3 arrays from a single unisphere instance. Is there a way to configure one unisphere to manage multiple symapi servers without local SAN connectivity to all arrays (gatekeepers)?

I know there is a Unisphere360 but it only gives a global view and you still need to open unisphere for each array.