Draw multiple UI boxes

I’m trying to make a UI where the player can click two points on it to draw a box. I’ve managed this with both draw lines and draw box, but I want to draw multiple boxes. With draw lines, each box is connected to the previous box, which looks really bad. With draw box, I can only seem to draw one box. Does anyone have any ideas on how I could have multiple boxes on my UI that aren’t connected to each other?