Downloading UE4 from github

Hi everyone . I have a question In the github version of unreal engine 4 we generate project files through cmd which is around 2.8 gb so is there anyway I can pause the download .

Because my network went off and I have to start from 0 again wasting my 500 mb .Also when I have to upgrade to newer version of ue4 then I have to download the whole files again ?