I just created a repository with part of IntelliJ bindings migrated to an xCode template(including the custom duplicate line). Feel free to give it a look, try it and keep improving it. Sadly the only way we can achieve this is doing it manually.
https://github.com/FrangSierra/Xcode-IntelliJ-Keybinds
There is also another repository with the color theme of dark IntelliJ in case any of you could find it interesting!
https://github.com/FrangSierra/Xcode-IntelliJ-Dark-Color-Theme