Working with firewall in ipsmanager 5, how to open a port?

Question

firewall

Hello everyone, I just can’t defeat the firewall in ispmanager 5, I don’t understand how it works (((in version 4 everything was clear and logical. In particular, I can’t open port 3306 (the standard mysql port) in order to remotely connect to the database.
OS CentOS is installed, iptables just says port 1500 is open, this is the port for the ispmanager panel, although in fact ports 80, 25,110 and a number of other ports are open, so where are the rules for them? newbie