Version: (using KDE KDE 3.5.7) Installed from: SuSE RPMs Pretty much what the title says. This way user could record a macro and store there some repetitive tasks. Then he/she could do only one task -- replay macro.
This is a pretty advanced feature, and Gwenview already has rudimentary batch actions (e.g. rotating multiple pictures at once). As cool as your idea would be, it's out of scope for a simple image viewer/manager. If your photo manipulation needs are greater, you might consider using a more powerful and featureful piece of software such as DigiKam or Darktable.