Yes they can.She probably already knows! It is a natural kitty behavior. Give her a potty pan and show her to it. Bet she uses it with no problems!
In the wild, a kitty covers their pee and poop, to keep larger predators from picking up the scent and getting them. So she should be more than willing
IF by some off chance that she doesnt, get a scoop full of outside dirt and put it in the potty, and she will know that is where to go. Then you can switch to litter!
PS- they also try and paw around their food to keep predators away as well