first I would like to thank you immensely, this program is excellent and more and more it is improving. Congratulations on the work.
Today I come with some suggestions:
1: Way to turn off the display in specific frames
* In the example, my character gives a blow in which he rotates the body, and at that moment the helmet could not appear.
2: A way to change the image_xscale or invert the sprite in a specific frame.
* To complete the animation's rotation, the helmet would have to appear inverted in the last 3 frames
3:Could have a control-z
4: Frame counter
5: To be able to edit the x, y and angle through a text box