While working in nodes creation/editing mode, you can only add new nodes after the last node on the edge. It is possible to use Insert command from pop-up menu, or button with the same function to add nodes anywhere, but it can be very cumbersome in case of multiple nodes insertion. Adding new node near existing node may interfere with selection of that node instead of creation of a new one. The Insert Elements mode allows to bypass these two problems. This mode has two main advantages:
When using a keyboard, the Insert Elements mode is activated by depressing the "a" key on keyboard and holding it depressed while clicking the primary mouse button on desired place in the work area .
In case of device without keyboard, use menu (creation/editing mode) > Edit > Insert Elements Mode option or button in the menu panel to activate this mode.
Inserting new nodes is especially useful when adjusting automatically created connection between objects or for creation and editing of special shading effects with manual stitches. If large number of manual stitches is created, it is also helps to avoid selection of existing node instead of making a new node.
Below example illustrates insertion of new nodes. Polyline ends with point (E) . We want to insert some nodes after the node (2) . Select point (2) by clicking it.
Activate the Insert Elements mode. Tap or click to places where you want to place new nodes. Create new nodes (3),(4),(5),(6) and (7) . Then exit the Insert Elements mode. Please note that these new nodes were inserted into the middle of the nodes sequence, after the node (2) . Dotted line on below illustration indicates previous stage of the polyline.
Note : while Insert Elements mode is active, you cannot select existing nodes. To do so, exit the Insert Elements mode first (release the "a" key or uncheck respective option in menu).