That's almost like asking how do I make this car drive on water..
To which my answer would be: "why not try a boat? That's what it's for!"
If you are talking about making a rotational platformer however, there is an example shipped with construct 2.
If you'd like to use both the physics part and be able to control the "bird" after launch, you might be able to use grouped events to switch between the different behaviours, but I'm not sure that would be a great idea.
Could you maybe explain what it is you'd like to be able to do and why you want to use the platform behaviour instead of the physics behaviour?