How to add weather plug-in to oppor9?

ColorOS 12 and above systems: press and hold the blank space on the desktop (or close two fingers in the blank space), click the "+"in the upper left corner to find weather plug-in (a three-party weather software plug-in or clock plug-in with weather) and add it to the desktop.

Coloros version 3.0- 1 1.3 system: press and hold the blank space on the desktop (or close it with two fingers), click the plug-in/card, and you can find weather plug-in (a three-party weather software plug-in or clock plug-in with weather) and add it to the desktop.