How to customize firewall rules for managed kubernetes service?

Hi. I recently started to use DigitlaOcean managed Kubernetes. and Just realized that when I try to modify my node pools (adding or deleting existing one), It also refreshes my firewall setup together.

I need to customize this firewall rule for my services. and Rollback of firewall rules can be DISASTER in my case.

Is there any way to define custom ports on firewall and lock it to avoid unexpected rollback?

I’m pretty sure that this can be a common issue for every users who planning to use DO managed Kubernetes.

I’ll wait for your reply. Thanks.