I have to say that while I love ColdFusion Builder, I hate setting it up. Every time I have to take 4 or 5 installs before I get it right. At the moment I am setting up CFBuilder 2016, 64 bit. I want to set it up as a plugin on this Eclipse setup: Eclipse IDE for JavaScript Web Developers.
I'm using the 64-bit version of both. I extract the Eclipse environment to my desktop. Then go install CFBuilder, specify the folder I extracted to, and install. When it completes and starts up, it runs, but none of the ColdFusion Builder add ins are available. CF is not available as a new project, CFMs aren't available as new files, etc.