EndNote Online provides most of the same Cite While You Write (inserting citations into Word) features as the EndNote Desktop version when the plug-in is downloaded.
EndNote Online does not support journal name substitutions--full journal name to abbreviated journal name and vice versa.
If you need this feature, you must manually correct the journal name in the reference (or use the EndNote Desktop version).
Download the Cite While You Write Plug-In
|Macintosh Cite While You Write Toolbar|
|WIndows Cite While You Write Toolbar|
Creating an Independent Bibliography