You can also use the numeric entry fields in the “Controls” bar (above the canvas) to set exact values for coordinates (X and Y) and size (W and H) of the selection.Cropping When cropping parts for laser cutting, use tools that actually remove the vectors rather than only mask them...
-> Rulers, Guides, Statusbar, Toolbox - hiding them does not make any difference -> resizing the window to a small canvas size makes a huge difference, in a small window it might actually be nearly usable. Is the lag present with the select tool and all dialogs closed, with a simple...