XnView Software

When in Fullscreen Mode and when the picture is zoomed in, the only way to move the picture is the little thumbnail at the bottom right.

May I suggest that in addition of that thumbnail, when the mouse is moving over the border of the actual viewable screen, the picture moves also?

For example when moving the mouse up and reach the top and when the mouse is still moving up even after reaching the top (of the viewable screen) then the picture moves up also until it reaches the top of the picture.

Or is there such option already but I didn't notice?

I just noticed that my suggestion is exactly like the windows Magnifier program from Microsoft but it would be more convenient if XnView can do that

currently you can (configure) move the picture by using right click