Default Tweak the return-button (send) for sms?

Hello all,

is there a way to tweak the (automatic) send function when I hit return in sms?
It is annoying if I forget to hold shift if I want to make a brake in the text layout and *WOOSH* the sms is send away.

I'm on FatToad 11

EDIT: I'm talking about writing sms over the hardware keyboard.