The Calendar format is great. But can I also view the trainings in a plain "list" format?

Yes! One of the convenient features is the Printable Calendar, which you can access when you hover your pointer over the "Training Calendar" tab (above), and select "Printable Calendar." You can then filter your training selections by category and print only the ones that interest you. This feature preserves the "list" format you were accustomed to seeing in the OSTRC Training Directory.