My Gentleman Tom Cat

my cat is not using a cat litter.. I have a cat name charlotte. I didnt train her since she was just a kitten, she doesnt use a cat litter to pee or poop...but rather she would use our bathroom and from there she would search for the drainage hole where she would poop or pee.Whenever our bathroom is closed and she wanted to pee or poop.She would keep on meowing in front of the bathroom door.The funny thing is if no one opens the door for her esp if all of us we're sleeping she would jump on our bed and will meow right beside our ears until she wake us up and open the bathroom door for her. The same when she wants to go out. Since our door doesnt have a esp door for her, she would do the same thing meowing in front of the door until someone opens it for her. And when she goes back from wandering outside.She would meow again infront of our door informing us that she came back and would want the door to open for her to get inside the house. Our neighbors knew her because of her esp attitude and well trained manner when it comes to that. She already have 3 kittens now, and one of the kitten got her bathroom attitude from her mom.