I am aware of the various shortcuts for resizing and placing a window in a particular location, but I would like to know if there is any software or method out there for driving a window around to an arbitrary location using the keypad as if you were driving a mouse around the screen that was dragging the window.
Similar to how in a lot of programs (Google Docs, Libre Office etc.) you can move an image by dragging with the mouse or CTRL+(SHIFT)+ARROW (optional precision mode).
Example: You want to line two floating windows up horizontally but are not precise enough with the mouse, CTRL+???+ARROW