2 grove I2C drive motors (L298P) on arduino

I have a robot with 4 motors, I used 2 Grove - I2C Motor Driver (L298P) boards to drive them. One has the default address and the other has the address 0x, 0D. I have a problem I cannot control each motor independently.
In fact I would like to control each of the motors by choosing its speed and direction of rotation. The 4 motors must remain independent.
How can I do ?
Thank you in advance for your help.

You can refer to my answer below and purchase an IIC Cascade Extender to help you solve this problem.