Rate limiting / whitelist / change value per Partition key

I just want to know if the following use cases are possible or will be possible in the near future.

Let's say we have rate limiting per IP address.

> Use case 1: Is it possible to whitelist the IP/Partition key
> Use case 2: Is it possible to change the rate limit value per IP/Partition key

Real-life use cases:

> I want to whitelist an IP address
> I want to increase the rate limit for specific IP address or virtual host