Hello,

I am interested in getting the software to make some Pixel art for a game I am going to work on, but I was wondering if there's an option to use a flipbook(sprite sheet) created in another software inside the program and convert that into pixel art. If there is no such function, it might be quite useful, because it can allow me to have a lot more options in the creation. 

I really like the effects you can make with the current system as well!

Yes, when you import an image it ask you for the image frame width/height. So if you set 64x64 fromm a 1024x1024 image the tool will pick that frames to  show you the animation to use.