@amanda.hinchman-dominguez Here's my setup. In order to get Edvin's latest changes, you'll need to build the TornadoFX project yourself.
I fork the repo. This makes a "bekwam/tornadofx" from "edvin/tornadofx". I can then do anything I want with my copy. If I want to contribute a change, I commit to my repo (bekwam/tornadofx) and submit a PR to Edvin who will pull the change into edvin/tornadofx.
I update my bekwam/tornadofx repo, frequently merging in edvin's and other's changes gathered in edvin/tornadofx.