The first option is to import the private key for that from address from the first node to the second, using dumpprivkey and importprivkey. Then the second node will be able to do anything on behalf of that address.
The second option is to grant issue permissions on the asset to an address on the second node, using the asset's admin address (which by default will be the address that originally issued it). The permission you want to grant is called: [asset name].issue