Xcode 9.x Line Duplication and Deletion

Question

Up until Xcode 8.0, it was possible to customize IDETextKeyBindingSet.plist file. However, now it seems like modifying this file causes Xcode to stop behaving normally (e.g. arr

Answer 1

The above answer seems to be broken in Xcode 9.

Here is another solution that I have verified does work in Xcode 9 GM:

Custom Commands

    Duplicate Current Line
    moveToBeginningOfLine:, deleteToEndOfLine:, yank:, insertNewline:, moveToBeginningOfLine:, yank: