Flex - UE4 Branch

I was installing flex from here

But according to these instructions

  1. git clone

  2. You should now be on the release branch. Run setup.bat. You can now run GenerateProjectFiles.bat, build UE4, run it, etc.

  3. git branch –t FleX origin/FleX

  4. git checkout FleX

  5. GenerateProjectFiles.bat

  6. Open .sln, build UE4.

  7. Run UE4 Editor, open the FleX test project.

I do not understand step 3

Could you help me?

I use this with visual 2013 and not replace the files in the setup