*The screenshots referred to here are from 22.1.2-GA Director
A soft reset, sometimes called a soft reconfiguration, uses stored prefix information to apply the policy and configuration changes and to reactivate BGP without tearing down existing peering sessions. Stored update information is used for this purpose, so this method uses more memory, allowing the new BGP policies to be applied without disrupting the network.
Step-1:
Enable Soft Reconfiguration at the Global level
Step-2: