Reconnect PPPOE Client if the server does not send traffic for X minutes" not available on Gen 6

"Reconnect PPPOE Client if the server does not send traffic for X minutes" option  is not available under WAN Interface Configuration | Protocol tab on Gen 6 firewalls.

It is now replaced with "Disconnect the PPPOE client if the server does not send traffic for X Minutes".

GEN6:

GEN5:

This issue a graphical bug (192588) but the feature is still acting as Reconnect PPPOE Client if the server does not send traffic for X minutes.