Went navigating on the NSX-T ui of a Tanzu deployment, Under load balancer/server pools, the SNAT Rules will be gray out.
VMware NSX-T Data Center
VMware NSX 4.x
Vmware Tanzu ( TAS)
NSX is not main in charge of this environment Tanzu is the one that manage all this
Due that Tanzu is the manager and creator of this we will have to make those Changes true Tanzu and those will transpose by the NSX NCP to the NSX manager.