Check out the helps. Click on Help and select Index to get to the help. Then click on Search and give shortcuts as the search keyword. The first item is what you need. Click on it and then click Display to get a list including this:
quote: Ctrl+N New Pattern Ctrl+O Open Pattern Ctrl+F4 Close Pattern Ctrl+S Save Pattern Ctrl+P Print/Preview Alt+F4 Exit PCStitch Ctrl+Z Undo last Command Ctrl-X Cut Selection Ctrl-C Copy Selection Ctrl-V Paste as New Selection F4 Zoom to Fit F2 Zoom In F3 Zoom Out
I lost the icons that show in the menus that match this. The copy wouldn't take them, too.
I don't know what you mean by lower left half and upper left half.