|Keyboard Shortcut||Menu Shortcut||Menu Location|
|···||Alt+C, F, H||Vector -> Mirror Horizontally|
The Mirror Horizontally command creates a horizontal mirror image of the selected vector entities.
Select one or more vector entities using the Vector Select command, then activate the Mirror Horizontally command. Set one point to act as a reference point, and a second point to establish the location of the mirrored copy.
After the mirror copy has been placed, the new copy becomes the new selection.