Can I use any digital interface pin as GPIO of EC200U-CN

I want to use some pins of EC200U-CN as GPIO as per our need. As this module doesn’t have any dedicated GPIO pins, so I have to use pins from any digital interface which I am not using.

Can I use those pin as per my needs or any suggestion to achieve my goal? Thank in advanced.

Regards,
Prayuktibid

Could you tell me which the version of the module? If you the version of module is OPEN,there are some pins can be used of GPIO.