Cats learn their entire life so please do not worry about the litterbox. The thing you want to do is to put the litterbox in a quiet place of your house,you can take a tiny part of litter from the box the cat is using now and put this in the new litterbox,but i do not think you need to do this. If the cat have problems finding the new litterbox she will let you know,you might want to leave the lid off the litterbox for the first day or so until she starts to use it.