How to set the Workload of already created project?

If you have already created a project, then you will find the project listed on the left bar on the dashboard page.
Clicking on the particular Project that’s threshold needs to be settled, you will find a drop down arrow that will give you an option of Edit Project.
Clicking on the Edit Project button, you will find the Project Workload button in the left bar. Clicking on the arrow will set the number of threshold.