Pull request for a new feature

I write here because I didn’t get an answer on our StackExchange (https://answers.unrealengine.com/questions/666235/unreal-engines-pull-requests.html).

Suppose I would like to add a new small feature to the Engine - some new macro (here it would be expandable if-else branch) that community agrees it would help. Suppose I created a new branch of the engine with this macro and upload it as a pull request on a master branch of Unreal Engine. Do I have then any chance for my feature to see a daylight?

Yes, it is quite possible. But both the usefulness of the feature and quality of your implementation needs to be high.