Explanation
In Clish
HostName> set web ssl-port <Port_Number>
HostName> save config
[Expert@HostName]# grep 'httpd:ssl_port' /config/db/initial

Explanation/Reference:
Explanation: This is the order that rules are enforced:
1. First Implied Rule: You cannot edit or delete this rule and no explicit rules can be placed before it.
2. Explicit Rules: These are rules that you create.
3. Before Last Implied Rules: These implied rules are applied before the last explicit rule.
4. Last Explicit Rule: We recommend that you use the Cleanup rule as the last explicit rule.
5. Last Implied Rules: Implied rules that are configured as Last in Global Properties.
6. Implied Drop Rule: Drops all packets without logging.
Reference: https://sc1.checkpoint.com/documents/R76/CP_R76_Firewall_WebAdmin/92703.htm

Explanation/Reference:
Explanation:

Reference: http://dl3.checkpoint.com/paid/0c/0caa9c0daa67e0c1f2af3dd06790bc81/ CP_R77_Gaia_AdminGuide.pdf?HashKey=1479835768_76058f0fc4209e38bc801cd58a85d7c5&xtn=.pdf