The following key bindings would be helpful:

ALT-Up Arrow / ALT-Down Arrow: Move the current line up or down 1 line.

CTRL-ALT-Up Arrow / CTRL-ALT-Down Arrow: Duplicates the current line up or down 1 line.

CTRL-D: Removes the current line you're standing on.

CTRL-SHIFT-R: Find resource. Opens a popup that allows you to type a filename (or part thereof, using * as a wildcard) in an input field. Below the input field is a multi-select box which is filtered on the filename you typed. Using the up/down arrow keys you can move within the multi-select box. Pressing Enter selects the currently highlighted.