Depending on your graphic, you can use the offset feature to move the cut lines in some to remove any excess cut lines. Here is a link to a video on it -
YouTube - Eliminate White Trim with CutStudio - Print-Cut Transfers
Otherwise, Robert is correct. You will have to go and manipulate the cutting nodes by hand. This is a time consuming process and you should charge more for designs that would require this. After a couple of times, you will notice which designs are going to take more time.
Hope this helps.
Mark