This a temporary space for you the users can do on the fly analysis and work.
Across all the eigen macros there will be a create page icon and a share icon. Both these links will create a page with in the temporary space.
If you want to test a new calculation or just share a specific trend this is the place to do it. Benefits of using the temporary space to make changes to macros on pages is if you only have access to read and not edit a page. With this feature you will be able to make visual or calculation changes still the the macros. which allows you to test a new calculation or try a new lay out.
Using the share icon this will also create a page in the temporary space but its mainly used for creating a page in the temporary space then sharing the link of that page with colleges. The page will save permanently in the temporary space and can be shared amongst the team.
Once you have created something you can move it to you personal space where it will be easily accessible for you to work on.