Dynamic ratelimiting settings in Kong

Can we add the below rate limiting rules to the plugin configuration,

To temporarily rate limit a user/ip that is misbehaving and restart to make the update the setting if needed. After some time period, then the rate limit would need to be deleted and then a restart.

To rate limit the clients dynamically that at certain time periods in a day we expect more number of calls from clients. So general ratelimiting would not be good at that time.
For example if we set 5 req/sec at all times in a day,
but from 12-12:15 and 6-6:15 it should be 20 req/sec.