How To Restart CMakeLists?

I imported a github repository into CLion, but the CMakeLists file wasn't already there. I tried to add it in hope that it would automatically fill out, but it didn't. I followed a couple of JetBrains guides, but they don't seem to work. One of them said to type in reload cmake when you double click shift, however that doesn't show anything useful. The only option it shows then is Reload CMake on editing, which isn't what I want. How do I reload CMakeLists? I want it to be the correct file afterwards.