Default SMS app on KK

Hi, is there any way to sms apps working like in JB ? That two of them wold be as default sms apps? For example I use ninjasms for notifications and stock lg sms app to write sms, but when lg app is set as default i don't recive any sound notifications from ninja sms, if ninja sms is set as default, I'm reciving sound notifications, but I can't write anyting in stock app...