Aligning drill files

In principle, all Gerber and drill files should have the same coordinate origin in order to insure that all layers match. However, some CAD systems generate Gerber files separately from drill files, resulting in the two file types having different origins. This can be corrected as follows:

1. Click on the Align drill with pattern button to depress the button.
2. With the left mouse button, draw a selection rectangle around a drill hole. A rubber band segment stretches from the hole to the mouse pointer.
3. Draw a selection rectangle around the corresponding copper pad. All drill holes move to snap onto their pads.