To get into patch edition mode, do a right-click (ctrl + click when using a one button Mac mouse) on any patch to access a menu where you select "Go into patch edition mode", or select the "Edit patches" checkbox. The patch edition mode enables you to: • Select and deselect many patches. Select /Deselect a Row, Column, or all patches. • Invert a selection (i.e. swap selected and unselected patches). • Swap two patches. • Move selected patches before or after a patch, to the first column, or to the last column. • Flip the patches in a row or column. • Rename all the patches or just the selected ones. • Replace selected patches by White, 50% Gray, Black, or OSA-UCS background. • Copy selected patches to the last column. • Add White patches to fill the last column. • Extract selected patches to a new file. • Delete selected patches. Once in the patch edition mode, you can select a single patch at a time by clicking on each of them or select many patches by clicking and dragging on the layout. A red border is shown around each selected patch. You will notice that a small arrow appears on the right of the “Edit patches” text, immediately followed by a number, in red, between parentheses. The number in red indicates how many patches are selected. Clicking on the arrow opens a popup menu associated to the selected patches. A similar, more complete, menu also appears if you do a right-click on the patches layout; this other menu, shown below, is more complete because it contains menu commands which are dependent on the mouse position (such as “Select this ROW” or "Move selected patches... / BEFORE this patch"). Please consult the PatchTool Help manual for more information.