EndNote Online inserts references automatically into an 'Unfiled' group. However, if you have a lot of references for different topics or you want to share groups of references with other students or staff, then EndNote Online has the facility to create groups of references.
Create a new group
Adding References to a Group
When you click on 'All my references' in EndNote Online, you will see an 'Add to Group' option just above your list of references.
You can add attachments (e.g. PDFs) to references in your EndNote Online Library.
To Add Attachments:
Deleting Attachments
EndNote Online allows you to create a bibliography or reference list in a specific referencing style so that you can email, print or save it. You may need to submit this to your supervisor at interim stages during your thesis writing.