Basically you use the animator bar to set everything up, select the sprite and the animator bar shows all its animation stuff. If you select an animation or an animation frame, the properties bar will have properties where you can change animation speed etc.
What do you mean by limiting to 2 jumps?
Finally, to make bullets fire from a custom position:
- In the picture editor, move an image point to where you want the bullet to spawn from.
- In the event sheet editor, when you spawn the bullet, for the 'Image point name or number' parameter enter 1.