Body
Overview
To add a Trumba "spud" or event to an Inside U of I page, a custom Trumba "web part" has been added to SharePoint Online. This web part is available when editing any SharePoint Online site. These same instructions work for 25Live spuds as well.
Add a web part as normal and select Trumba, or 25Live, from the web part list. Then click on the "Edit properties" icon to add the embed code.

Add the embed code and select "Apply".

The "Learn More" link associated with the Trumba web part is: https://www.trumba.com/help/publish/pub_mod_sharepoint.aspx
The "Learn More" link associated with the 25Live web part is: https://25livepub.collegenet.com/help/publish/pub_mod_sharepoint.aspx