Launch external editor from PictView

[Klettermaxe]

I'm not quite sure if this is the right place to post a PictView request, if not, please let me know.

I like it very much, that PictView is an image viewer with just the most important features needed for viewing, resaving and aquiring images. Most users probably will prefer an image editor of their choice for the manipulation of color, contrast etc. Therefore it would be a good idea, to add a hotkey and an icon that instantly launches an external image editor with the image, currently displayed in PictView. This would be easier than pressing 'F' and ALT+F3 (assuming that you have configured an image editor as external viewer in Servant Salamander Beta 10a configuration).