Trouble with touring plans

I am trying to use one of the websites touring plans, but whenever I put in the suggested FPP it tells me I don’t need one. So the I pick a different one and it tells me I don’t need a different one. I am getting very frustrated!! I need to figure out FPP selections for all parks and schedule on Dec 26, 2016

There’s an option to force the plan to use your FastPasses. Try that to see if it fixes the problem. I can’t remember exactly where it is, but please ask if you can’t find it, and I’m sure someone can do a screenshot of it for you.

If my memory serves me right, you need to copy the plan and make it a custom plan, then you can do what you want.