Manual door locks

[maxifam]

Hello. I bought a used 2010 base model
Yaris 4 door sedan. Love the car already. BUT. It has no power locks or windows, which is fine. There are keyholes on both front drivers and passenger handles, to open the car. But none on the rear doors, so in order to open them, you have to reach in sideways and push on the inside handle lock button to open. Very annoying to have to do this all around the car wehn people want to open all 4 doors. Is this how it works, or am I missing a master button or setting somewhere. I've always had cars with power locks so I'm not used to this. Any info would be appreciated.