can we Bulk copy paste several tasks in Project online?

Hi Nisha,

Bulk task copy in a project can be performed either on PWA project schedule or by using MS Project.
a. Copy task in PWA project schedule: Open the project schedule in EDIT mode and copy the tasks but remember to adjust task structure (Task indent or outdent).

b. Copy task using MS Project: Open project using MS Project Desktop and copy task into the project plan. Any text content from excel, OneNote, word, outlook etc.. can be copied in Task name.

Milestone task can be defined with 0d duration or insert a column of Milestone in your project plan and mark required task "Yes" to that task as a Milestone.

Project Restore Administrative Backup and Restore is not available in a Project Online environment. If multiple versions of a Project are needed, for any reason, the best option is to identify the project(s) and save the required versions manually. Keep a backup copy stored locally or in any shared document folder of SharePoint.

Let me know if you need more help