I use the Do image viewer to browse my photos and decide if I need to use a photo editor. I have used a short cut on my Do image viewer to open pictures in Photoshop and if I go back to the image viewer with Photoshop still open and use the same shortcut again on another picture, it displays in the already open Photoshop with no problem. I made a shortcut for a different image editor called Luminar and while it works great for the first image, if I try to use the shortcut with another picture, a second incidence of Luminar opens along side the first. Is there a way to force the shortcut to allow only one of the targeted program to be open at a time?
I'm extremely grateful to all the developers of Do for creating what I consider an essential program.