Elements can be selected in two ways - either by clicking the element on the list to the left of the window, or by clicking on the element in the designer panel. Note that only the current element type is selectable in the designer panel. E.g. in the example shown below only contour lines ① are selectable in the designer panel.
Multiple elements can be selected by holding down the shift key and clicking on several items.
Once features have been selected, they can be deleted by clicking on the Remove ② button.
A feature can be edited by double-clicking on it in the side bar or designer panel. When you do this the feature will be expanded in the side bar, exposing its properties so that you can change them. You can now edit this feature, either by typing new values into the side panel or by dragging points and lines in the designer panel ②. Points can be added to or removed from lines by clicking on the ± button in the table ①.
