When saving the object you have the choice of saving to an embedded library or browsing for a folder.
If you have already saved it (as in your case) just open the library manager.
Select the object in the Embedded Library list and then press the "Export embedded subtree into local folder button".
Browse for your shared library.
When your students next re-load the shared library they will now have the new object.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11