===== Undo =====

It is possible to call off the changes made to the image by filters and transformations using the standart hot key combination **Ctrl+Z** or by pressing the tool bar button
{{:en:edit:en_undo.jpg|}}

You can not call off:
  * The use of instruments: the use of selection tool, building of sections, using light and other,
  * Closing of one of subimages (use [[..:processing:view_показать_все_изображения|Show all images]] function to do it),
  * Duplication and zooming.