x300B 4.3.7 (BETA) - Custom Firmware Rules

Updated x300B to beta firmware 4.3.7 and noticed that its missing the Custom rules within the Luci console. If i flash back to stable 3.217 - it does return.

This is also happening on a Bery - Can anyone tell me how else I can get to rules to modify outgoing TTL parameters vs the custom rules?

4.3.7 modem page can directly modify ttl