How to access Flow diagram feature

Locate and click on the 'Process Flow' button in the upper right-hand corner of the BuildPartner walkthrough interface to transition from the document view to the visual diagram interface.

Click the 'Edit' dropdown menu located at the top right of the Process Flow screen and select the 'Edit Diagram' option to launch the built-in diagram editor.

Utilize the shape palette on the left sidebar to select the 'Start' node (green-outlined circle). Drag and drop this node into the 'System' swimlane, positioning it to the left of the 'Display "Create Project" Form' task node.

Select the newly placed 'Start' node and drag a connector line from its right anchor point to the left anchor point of the 'Display "Create Project" Form' task to establish a sequence flow.

Commit all changes by clicking the green 'Save' button in the top right header. Verify the 'Document saved' confirmation message appears at the bottom of the screen before exiting.