You can assign one or more checklists to a project through the project details page.

You can configure templates to be automatically assigned to new projects based on the project type. See Create or modify a checklist template. You can still manually add templates to these projects without affecting project type settings.
Note: Once a template is assigned, it can't be removed from the project. You can mark irrelevant tasks and categories as not applicable and hide them from the view. For more information, see View project checklist details and Update a project checklist.
  1. From the top menu, select Workbench > Projects.
  2. Click the project entry.
  3. Click the Checklist tab.
  4. At the top right of the Checklist tab, select Settings > Add Checklist Template.
  5. Select one or more templates, then click Save.