What do you mean by "link"?
You can export projects from the mobile app and edit them in PD365, but not the other way around.
To do that, you can upload the project pack to the Cyberlink Cloud and then use Download Project from CL Cloud in PD365; or upload the mobile project pack to Google Drive and then double-click on the .PDM project in the local G Drive folder or use Open Project in PD365 after downloading it from G Drive.