What do you mean "you are copying two signals in your account" ?
You probably confuse 'signals' from other vendors (tips for opening trades) with the Signals service in this website.
So, you are not copying 2 'signals' but you have 2 EAs working in your account.
This is an entirely different thing, don't confuse it with signal copying.
Yes, you can copy a signal as well, along with your 2 EAs, but its highly unadvisable, since you will end up blowing your account.
Each EA and each signal (in an ideal world) has a money management plan and if you put all 3 of them in the same 'bag' then you will interfere with that.