It's possible to add glossaries to theory pages and exercises. You can add tags one by one, or in bulk.

Click on the Glossary tab. You will find this tab while editing theory pages and exercises.

You will see a list of all the glossaries which belong to the author groups you are in. Select on in the drop-down menu to the left of the glossary you want to use.

The default setting is inherit from chapter, which has to do with adding glossaries in bulk.

To add glossaries in bulk, go to the Author environment, and click on the Chapters tab. Select the chapter you want to add a glossary to. Click on the Glossary tab.

You will see a list of all the glossaries which belong to the author groups you are in. Using the drop-down menu to the left of the glossary you want to use, you can select where you want to implement the glossary. Your options are All, Theory + Slides, Exercises, and None.