Flip rotates objects, such as footprints, horizontally about the selected grid point, and places them on the reverse side of a double-sided PCB.
In the Electronics workspace, in the canvas of an open Electronics 2D PCB document, left-click near the objects you wish to flip and drag a box around them to select a group.
On the Design toolbar, click Modify > Flip to open the Flip panel.
Optionally, in the Flip panel, adjust the Routes Mode settings as needed.
On your keyboard, press Ctrl then right-click the canvas to open the contextual menu.
In the contextual menu, click Flip: Group to flip the group.
Optionally, click Undo to revert the change and Esc to exit the Flip panel.
Click Done to accept the changes and close the dialog.