Log in to the HTML5 client.
Select the Work workspace, Gantt tab.
Select a project in the Project Data Selector.
In the Main toolbar, click on the Edit () button to open the Project Administration dialog box.
Select the Definition folder.
In the Stakeholders section, click on the button to open the Permissions Advanced Attributes popup.
Select a workflow in the Workflow field picklist.
Close the popup.
If a workflow has been initialized by a Project Type, the Workflow field will not be editable and will be in read-only.
This setting is defined by the Administrator.