hello, you can definitely do this but it’s not as simple and technical as what you’ve seen. Take your pattern and tape it to a piece of paper just like with the other demonstrations. As with the other examples, you’ll take your increase and divide it by 4. At the waistline on the pattern, (there should be a mark on the pattern on where this is), you’re going to mark on your paper that increase (which was divided by 4) on the side seam side. Now you just blend a line from the original pattern to the new waistline and then blend it back to the hipline. So your pattern remains the same except for this side seam increase. I know you’re in a hurry, but I still recommend creating a muslin to test the fit so you can make sure it’s going to work. Good luck!