1 - isn't possible , as the style is a layer , hands is a layer and body is a layer , so for each new animations more than 100 sprites will be edited , so users can't make custom animation but i can do it for them.
2 - attack, roll, duck, hurt are possible for me to add on the next version , will also separate the hands layer for them on export to be possible.
3 - weapons are possible now because on the last 2 versions i was only focusing on the core programming not the art.
4 - weapons animation will be separated from the sprite animation , so for each exported character i will generate 1 layer for body and hair, another for right hand if the weapon is left handed , and another for weapon which will include the [ idle - run - attack ] animations for the weapons.
for 2 handed weapons like guns , heavy weapons the hands layer will be hidden and will only export the body and hair as a single layer and the weapon [ run - idle - attack ] as a second layer, also effects for weapons may be included on the same weapon layer as a trail for melee attacks and shoot effect for the ranged attacks , for weapons like bows or spears they wont have an effect for shooting but the arrow or the spear will have it as a hit animation.
also i would like to see more features requests from users to make this app even better on the next updates , thank you