How to Add and Delete Nodes and Edges – Help Center | Teachme Process

A process diagram consists of "nodes" that represent tasks or decisions, and "edges (arrows)" that represent the order in which they occur. This article summarizes the types of nodes and edges, as well as the specifications for adding and deleting them.

Overview

Adding and deleting nodes and edges is done in edit mode. Adding and deleting is not available in view mode.

Specifications

Types of Nodes

Start Node…The starting point of a process. Only one per process.
End Node…The endpoint of a process. Only one per process.
Execution Node…Represents an actual task. You can configure settings such as Duration, Task Type, Assignment Labels, and Manual.
Condition Node…Represents a branching path based on conditions.
Shape Node…Can be resized.

Various Limits

Execution Nodes and Condition Nodes…Up to 50 combined.
Shape Nodes…Up to 50 (counted separately from Execution Nodes and Condition Nodes).
Start Node and End Node…Up to one each.

The current count is displayed in the upper right of the canvas as "Node Count: n / 50". This is also visible in view mode. If the screen width is narrow, the "Node Count:" label is omitted and only the number "n / 50" is displayed.

How to Add Nodes

There are three methods:

Add the next node from the "+" at a node's connection point.
Insert a node from the "+" in the middle of an edge (the original edge is replaced by two edges, and the subsequent node is pushed down).
Drag and drop from the toolbar onto the canvas.

With any of these methods, added nodes are placed along the grid.

When adding from the "+" at a connection point, up to 5 Execution Nodes can be added at once. From a Condition Node, only Execution Nodes can be added; Condition Nodes cannot be added on top of other Condition Nodes.

Edge Connection Rules

Circular edges that loop back to an upstream node cannot be connected.
You cannot start connecting an edge from a handle (connection point) that is intended as a connection target.
If an edge is brought close to a handle that cannot be connected, the handle will be displayed in red.

Delete Behavior

When a node is deleted, the edges connected to it are also deleted.
Deletion can be performed using the Delete key, the right-click menu, or the toolbar when multiple items are selected (the Delete key on Windows is also supported).
The Start Node cannot be deleted. If the Start Node is included in a multi-node selection, everything except the Start Node will be deleted. Edges connected to the Start Node will also not be deleted.
An operation that deletes multiple nodes at once can be undone with a single Undo.