pppoe and hotspot together

Hello..
i have router rb600 i make hotspot that my customer can access internet by user name and password,i want make pppoe connection in same router that my customer can also access in internet by pppoe connection ,they use the same username and password in hotspot that they have..can i do that ..or how can i join hotspot and pppoe connection together..

thanks for help

ppoe and hotspot controller, they both used to authenticate users, why do you need such a scenario ??