❌ → Yes, but only Datacenter licenses are portable (via Dell license portal). Enterprise is usually locked to original Service Tag.
❌ → No. Only file import.
iDRAC9 does NOT use a license key string that you type in. idrac9 license key
Would you like the exact steps to apply a license via iDRAC web GUI or RACADM? ❌ → Yes, but only Datacenter licenses are