Dronedesk allows you to group jobs in a project, and I'm going to show you how to add a job to a project. From the menu on the left hand side, choose the jobs menu option. This will open up the jobs page. Select the job that you would like to add to a project. And in the action column, choose edit from the drop down menu. Scroll down the edit record page to the project name field and select the project that you would like to add your job to from the list.
Don't forget to click save changes.