PageUp: Zoom in as the center of the mouse
PageDown: Zoom in as the center of the mouse.
Home: Center the mouse to the center
End: Refresh (redraw)
*: Toggle between top and bottom layers
+ (-) layer by layer: "+" and "-" in the opposite direction
Qmm (mm) and mil (mil) unit switch
IM: Measure the distance between two points
(P) = pad; (N) = network; (S) = character () () () () () () () () () () () () (T) = conductor; (V) = via; (I) = connecting line; (G) = filled polygon. For example, to edit the component by EC, the mouse pointer appears "ten" word, click the component you want to edit can be edited.
Px: Place X, where X is the target.
(A), (C), (F), (P), (S), (T), (V), (G) are the same as above, and (I) = flip selection (M) = movement selection part; (R) = rewiring.
(A) = all; (L) = all on the layer; (K) = locked part; (A) = () () () () () () () () () () () () () () N) = physical network; (C) = physical connection line; (H) = specified aperture of the pad; (G) = grid outside the pad. For example, when you want to select all, press SA, all the graphics that have been selected, the selected file can be copied, clear, move and other operations.