Adding a Project Participant
On the Project Bar, choose the "more" dropdown.
Select "Manage Project Participants"
The window that opens, you can select users, similar to sharing a folder or file under the "my files" area.
As discussed elsewhere, You can select if the owner is the project manager.
User permissions are as follows:
Project Manager - This user if selected, can manage the project - Delete, hide, archive, add users, rename etc.
None - Default setting. Allows user to see project, and folders but not files.
View Only - User can see files in web viewer, but no other function.
Download - User can open the files in application, can download to local disk.
Update - User can make updates to existing files (save)
In addition to the above, options are as follows:
Create - User can save new files
Delete / Move - User can archive or move files to another folder.
You can also set an automatic expiration date for the user - the user will lose access after the date specified
Removing a user from the project requires you to click on the "X" button on the far right of the line with their name.