Add an option to provide the manual download link of image

[ashishdoneriya]

Suppose I have 3 types of an image - small thumbnail (~200 KB), large thumbnail ( 2 MB) and original picture (12MB). When a user clicks on the small thumbnail, I open up the gallery view with image as large thumbnail (option provided). Now I want that when the user clicks on the download button original image (~12MB) should be downloaded. But I couldn't find any option to provide the link to the original image. Please provide it.

And by the way this plug-in is awesome.