"Edit the Sprite Object" features : zoom, visibility

I currently work with a 128*1280px png picture (yes picture’s height is 1280)

I work in “Edit the Sprite Object” window and I need two features :

  • first, i would like to have the ability to see entire picture, it’s currently not possible (the top of picture is missing even if scroll button is on top) ;
  • second, I would be glad if i were able to zoom sprites when editing them (for example when i’m editing collision mask of a big picture)

Thank you for everything