The only lic keys you have that are good for ops mgrs are:
1. vCenter Operations Manager Standard 5.6 (unlim), this is likely the 'free'/'honor-systems' key we give out for legacy situations.
2. VMware vSphere with Operations Management 5.5 Standard, this is for 6 vSphere cores.
There is no other vC Ops licensing visible in the screen you show.
Also, keep in mind that you can only use 1 license key per vC Ops installation.. you cannot combine multiple keys. So no licensing of VMs using A per-VM key, then a handful of hosts socket/processor keys.