Using Algor from a PC you can apply changes to several nodes on your map at the same time, without having to make them several times for each node.

To do this, you must select all the nodes you wish to edit with click and drag, while holding down the mouse or touchpad of your PC. Alternatively, hold down the CTRL (on Windows) or command (on MacOS) keyboard button and click on the nodes you are interested in.

You will see dots appear around the selected nodes. If you make a change, it will be made to all selected nodes.