Export source documents - Is there any way to enable to select multiple Project here to get the reports for multiple projects at once

I am trying to fetch the reports for multiple projects at once as per the attached snapshot.

I am able to view the report for single project, but it is very difficult to view the reports by multiple projects.

Can any one help, is there any way to enable the multi project reports.

Or any SQL query from which I can pull the reports from, multiple projects for profit and loss for each projects.