Is possible edit EventGraph via C++ ?

Good evening,

I am new to Unreal Engine 4 I have a doubt about EventGraph.

Can I edit a EventGraph through C ++?

That is, I want to keep the basic structure without code, but turn if I want to implement something advanced, not having to create a class (“Object of type x (actor, character …)”)

For example: Example “Third Person” is by code, I feel great to reuse code, but if I do it for “EventGraph” there any way to edit it by hand, there somehow?<

if not could, I would know what would be recommended (programming or graphic) or both combine to work better?