3D Add/ remove nodes

activate the tools manual activation go to the left toolbar and select one of the options to start editing keyboard shortcuts activate "add node" with + activate "remove node" with add node tool select an object, activated the tool in the left toolbar, hover over the line close to where you want to add a node, a green node should appear and indicate where the new node will be added, click to place you can add nodes to a line in 3d with a slight offset to the current line extend with the add node tool when the add node tool is active, you can extend the line by clicking on either the start or end node of the line when the mouse is over a node you can extend from, it changes the cursor in addition, you can also extend a line from the start or end with keyboard shortcuts press 0 to extend the line from the end or shift+0 to extend the line from the beginning remove node tool activated this tool hover over the node you want to delete, nodes will turn red as you hover over them to indicate which will be deleted click to remove a node