Here's your step-by-step tutorial on editing/uploading images using different software:

Step 1 - Access the My Uploads folder:

When you select a pre-designed template, the images associated with the chosen template are copied to the My Uploads folder. Access this folder to find the image you want to edit.

Step 2 - Download the original image:

To edit a specific image, select the 3 dot button and download the original version. Save it to your computer.

Step 3 - Edit the image:

Use your preferred editing software (such as Adobe Photoshop, GIMP, or Canva) to customise your image, making sure to keep the same dimensions as the original.

Step 4 - Upload the edited image:

Once you've finished editing, save the image and upload it to the lesson.

Step 5 - Replace the original image:

Select the block that contains the original image you want to replace. Then, select the "Background" button on the right-hand sidebar, followed by "Edit". From there, choose the "Replace" option.

Step 6 - Select the edited image:

Upload your edited image and select it as the new image. Once you're satisfied with your changes, click on the "Save" button to save your edits.

That's it! Your edited image will now be displayed in the block in place of the original image.