Currently field type entry has only possibilities Fixed and dynamic
If you choose dynamic and create new page it will always create page to same place.

I would like to achieve a possibility to create page whatever space and under whatever parent in Confluence.
I would guess there are two options
- Enhance the create page dialog to ask also the wanted space and parent
- Improve create database (Entry) macro to function better than it does today
- Also predefined "create database macro" that you could add to page templates would be super good.
Databases has a lot of potential but I have not seen lot of development/ improvements since it has been introduced.