In the center panel, click the spot where you want to insert the image, and then click the image icon. Inserting an image into a wiki page
A Pick a File dialog box opens. It only shows images that have already been uploaded to the wiki. Pick a File dialog box
Select the image file that you want to insert.
Click Pick File. The image file appears in the text editor in the format shown below. You may change the text My_Image to something more descriptive for a screen reader or for reference. The Preview panel shows how the image will appear in the wiki. Image file as it appears in the text editor