You can view the activities applicable to the existing projects.
- Go to Configure > Project to view the list of existing projects.
- Click the Action icon under the Action column to view the action menu of the project you want to view activities.
- Click View Activities and it will redirect you to Manage Object Page and display the list of activities which are applicable to this project.
You can get manage the activities at Manage Object Page by using Project, Activity, and Search properties.
You can filter the project and its activities by selecting the project from the drop-down list of Select Project box.