How to set individual camera resolution

I have set 3 camera at different angles. I added a new camera. And trying to change the resolution 720x720. With the new camera other camera resolution also change with them. I just want to change individual or the current camera resolution. Any suggestion or help

Download the file here : http://pasteall.org/blend/index.php?id=52785&fbclid=IwAR1Hm175vXv14b7BcWDSxZSvGIWaSoggL_hoXI8pdAfNIhk1n5HtzrHMv_0

Unfortunately there isn’t a native Blender option for this. But Render Button & Camera Manager addon have this feature: