Keyboard Shortcuts - Duplicate and Delete

Configurable shortcuts would be best since everyone has a preference (especially vim peeps).

Duplicate a line: ⌘ + D
Delete a line: ⌘ + Backspace

Currently, Fire is using Mac standard keyboard shortcuts for the editor. We’ll consider user-defined mappings for post 1.0. ^Y is scheduled to be added tor “delete line”, i need to check if there’s standard one for “duplicate line” (is that really something people do when coding?). Thanx!