Quartus II: Help with bus out and bus in ports

Hi, sorry for stupid question 😆 , newbie with bus, as you can see I have done 3 chips in vhdl, one without vector, that is simple but bad vhdl code (not optimal) the I have done the other 2 with vector question is how do connect a out bus to a different in port bus, and also the one I have reuse how do i connect different signal to same but different bus ???

see attach image, thx in advance for help 😃

Of course I will want use vectors in VHDL so first chip will be change to vector if bus issues solved 😀