1. yes i need a simple feature with this integration just atlas change.
2. my problem was;
i had a camera and a sprite as its child. sprite scale is 1,1,1. sprites collider scale is 10,10,10. for different platform i changed my images. for some reason i set collider type as user defined. when i change sprite images sizes i also have to change collider size because it is in manual mode. i need z scale for collider so i have to use user defined.