Security
I want to provide only certain resolutions for Widevine L3 security level. How do I do that?
You could customize it with the Entitlement Message by applying different policies with different Widevine device security levels to different keys. As L3 is the default, you can keep the default Widevine device security level for keys associated with L3 quality levels. Alternatively, you can explicitly specify L3 for reasons of clarity. For the keys that require a security level higher than L3, you need to specify it explicitly.