CDK: custom endpoints for Aurora cluster?

Does CDK support the creation and management of custom endpoints in Aurora/RDS?

It's simple enough to (for example) group readers together, by region, under specialized endpoints using awscli or SDK calls, but the only mention I see in CDK seems to be a read-only representation of an existing endpoint.

If the answer is "no, CDK doesn't support this," then what's the guidance in this type of scenario, generally speaking? When CFN/Terraform support features that are, at least for now, not present in CDK, should I try to handle this resource outside the IAC framework (e.g. by using SDK calls after a stack has finished executing)?

Incidentally, CDK feels (even more) nascent when there isn't a tag for me to assign to this question. :|