One of the saddest disappointments with Creo is your sweep tools - both of them. I don't know how one could arrive at fundamental modeling tools so limited and inadequate, it's ridiculous.
Example #1: In your swept blend tool I want to sweep 1 - yest just ONE - section over 2 rails (trajectories), that is currently impossible. Really productive stuff, non-existant.
Example #2: Your surface tools don't recognize basic boundaries and need to be told where to "trm at" to even make tangencies possible
Example #3: In the Sweep tool it appears to be impossible to just use an existing surface edge at a sweep section, it makes you sketch one while active in the tool. That's not frustrating, that's just plain crazy.
Example #4: Basic surface controls like boundary influence shifting are also missing.