I haven't finished the skirt from the Nichola pants pattern yet. I altered the pattern pieces of the pants to make a skirt, and cut the skirt out, and basted it together to make sure it worked, and then I laid the skirt aside and started work on the two tee shirts.
There is a method to this madness. I have black thread in the serger now from the pants, and the skirt will need white thread, but both tees would be better with black than white. Rethreading the serger and getting the tension right is a pain, so I decided to get the shirts done now, while the black thread is on there.
I thought I'd post a blog about a technique I used to make the pocket pattern for the skirt, and to help me determine how to alter the pants pattern, though. It's called making a ruboff pattern, and you can use it to copy entire garments without unpicking the seams. I haven't been that ambitious, but I have found it useful in the limited ways I've used it.
It's similar to what you did as a kid, with paper and a crayon, to make rubbings of tombstones and stuff (Don't tell me I was the only kid wandering around making rubbings of tombstones. And less morbidly, the brass plaques on buildings.) It's also similar to how Indy made a tracing of the inscription on a tomb in Indiana Jones and the Last Crusades.
For the skirt, I wanted to add jeans-style hip pockets. My favorite khaki skirt has nice deep pockets that I wanted to copy. I turned the skirt inside out and laid it flat, then pinned an old flour-sack dish towel over the pocket and rubbed it with a black crayon over the pocket seams.
Then I cut out the rubbing and traced around it and added seam allowances to make a pattern piece. That's really all there is to it, although of course copying something that doesn't lay flat, like the crotch curve of a pair of jeans, is a little more finicky.