Go to the company related to the project you want to add.
Use the module Projects to add a new project.

Import clients and clients contacts

Import projects from a spreadsheet using your favorite editor Excel, OpenOffice, Google Spreadsheet, Numbers, ...

Edit a project

To change the data of a client go to the screen of that project.

Archive a project

You can prevent a project to be used in a timesheet by setting it as inactive.

Delete a project

In general inactivate a project is enough to prevent anyone to use it in their timesheet.

Here is how to delete permanently a project: