Hover your mouse over the link for “Pages” and choose “All Pages”.
Scroll down to the page that contains your gallery, hover over the name of the page and choose “Edit”.
Click the edit symbol (3 bars on the left side of the gallery) to edit the gallery.
Click “Update Gallery”.
Click “Add to Gallery”.
Click the tab for “Upload Files”
Click “Select File” to choose a picture from your computer or drag a photo into the upload box.
Once your photo has been uploaded (you will see a check mark next to the photo), click “Add to Gallery” from the bottom, right hand side of the screen.
You have now returned to the “Edit Gallery” screen. From this screen you have the ability to delete photos and also drag photos to different positions. When your gallery is in order, click the “Update Gallery” button.
Now that you have updated your gallery, you need to “Save and Exit” the gallery module.
Finally, and importantly, you need to save the changes you have made to the page containing your gallery by clicking the “Update” button. That’s all there is to it!