1. You can start by entering your Project's deadline on the project settings itself:

2. After that you would create your Tasks:

3. To schedule your tasks in bulk you can shift to the List View in the Tasks model and select the Tasks you want to schedule:

4. Enter the start and end date and apply the changes on all the Tasks selected:

5. In addition to that, to get a visual View with the start and end date of the project you can switch to Gantt View. From here you can drag, expand, and minimize your tasks' start and end dates while having the start and end date of the project visible: