XnView Software

Often working with multiple files comes the need to open/edit these in an image editor.
Here is my case - I configured as external editor Photoshop. Then, working with images for a catalog, editing (downsizing, adjusting, etc.) is needed with the external editor (here forget the built-in editing capabilities of xnview, these images are on multiple layers, etc.)

So here is the bug feature request: invoking the external editor (F4) opens one single file, instead of opening all selected files. The basic expectation is: select random files and then edit all those by hitting F4.

It is possible to open the seleced files in the preconfigured external editor, regardless of whichever was selected first?

The ShellExecute function used command is only for one file. The only way is to open multiple files by opening multiple instance of app...

Technically invoking ShellExecute for every file will do the trick, right? Only that it is a little bit slow. Other software warns over 10 selected files as "Are you sure you want to open 25 files?"