HPE has added functionality in their 5th Generation iLo’s that is not covered by the existing HP iLO templates. For example, HPE ML350 Gen 10 server who’s iLO is reporting issues with it’s USB/SD boot drive but the OID’s used by the HP iLO SNMP template is reporting no issues. MIB files for ilo 5’s and 6’s aren't available (at least for now)
But they have public documentation on their implementation of the Redfish API on ilo 5’s and 6’s: https://developer.hpe.com/platform/ilo-restful-api/home/ so it should be possible to include in HTTP template