Have you ever had lots of windows open and you wantedto combine them into a single document? I know what many of you do (because I used to do it). You tile all the windows and then drag each of them into the same document, one at a time. As you go, you close the windows you’ve used and keep dragging until everything is in one document. Then, after you’ve closed all the other windows, you realize you forgot an image (don’t look at me like that; we’ve all done it). A much better way is to choose the window you want to use, and then go to File>Scripts>Load Files into Stack. When the dialog opens, choose Add Open Files. You’ll see a list appear of all your currently open files. To remove any documents you don’t want included from the list, click on it, and select Remove. When you click OK, all the images will be placed into a single document in separate layers. You’re welcome! 

This tip previously published in Colin Smith’s Photoshop Tips column, in the March, 2020 issue of Photoshop User magazine.