Once your case is ready to share, there are a couple of options available to you:
To access these you will need to click on Share which appears in the top right corner of Engage:

For the PDF, PPTX and DOCX downloads, a small icon will appear in the bottom right corner showing you the download progress:

To share with a Build user, select Invite to edit, the below window will appear with instructions to follow:


Press Send and the user(s) will be able to open your Engage session in their Build version of ValueHub.