Placeholder to Image List

When I make my first draft of a new e-learning, I use a lot of placeholder images which I then mark with a yellow color on the description of what should be placed there. Once the draft has been reviewed by the customer I proceed to make all changes to the script and start sourcing the images. To organize this a bit better, I make an image list in excel.

 

I was thinking it would be helpful if this was somehow integrated into Rise. If I could check a box that this is a placeholder image and place the description there, it should not be difficult to generate a list of placeholders with their location in the course and the description.