Within Teamwork, you can change the category associated with a project.
When viewing a project, you can manage the project category via the project options menu. Click the three dots to the right of the project name and select Edit project details from the Manage Project tab.
In the edit project modal, you can update the associated category via the Advanced tab. Once you have selected a category, click Update Project to apply the change.
Alternatively, go to the Settings area of the project and select the General subsection.
Under General Settings, you will see a Category option. Hover over the category section and click the edit pencil.
You can choose an existing category from the dropdown, or click Manage Categories to create a new one. Click Save to apply the change.
You can also change the project category from the site-level Projects area by dragging projects into a category listed in the panel on the left.
Alternatively, go to the project's Overview tab and hover over the category in the details pane on the left.
For more information, see: Working with Project Categories