Find pictures in message management. There are four icons at the back of this picture, representing collection, saving as material, downloading and quick reply. Click the second Save Material icon to save the content uploaded by fans as the material of WeChat official account, as shown in the figure below:
Here you need to fill in the name of the material, click OK when finished, and then the system will prompt you at the top to save the material successfully. At this point, you can insert your saved material when editing the graph, as shown:
Click "Material Management" in the menu on the left, because we just saved the picture, so we need to click on the picture here. If the audio or video is saved, click the corresponding one, and you can see the picture data we just saved, as shown in the figure:
Under the material, there is a pencil icon. The function of this icon is to modify the name of the material, that is, rename it, as shown in the figure:
This icon is two arrows in different directions, indicating that you can move to other groups. On the right is the group. You can create a new group to save it or save it in a previous group. If you don't need the material, you can also click the delete icon to delete it, as shown: