How to add Custom.vcxproj into MyProject.sln?

I am using a custom UE4 build and I have a Custom.vcxproj Visual Studio project which I want to be able to edit and build as a part of the autogenerated MyProject.sln.

  1. I would like to make UBT to automatically pick the project up and include it into the autogenerated solution. I understand that I have to modify UBT for that. I would appreciate any tips on which part of UBT should I look at.
  2. I would like to build this vcxproj whenever I build the game project picking the correct platform configuration (win32 or win64).

Perhaps there is a simple way that doesn’t require modification of the UBT? Any help would be greatly appreciated!

Robert.