In the participants window you can also click on the ellipses at the top of the page (in the same line as the heading People) and from here you can change the meeting options by clicking manage permissions or you can download an attendee list. This can be useful for online lectures in the absence of SAM.
When you click on Download attendee list, nothing will appear to happen, but if you go to your Downloads folder on your computer you will find the list in an excel spreadsheet, with the time that everyone arrived.