Signals Notebook: Is there a way to specify the page and location when adding content to an experiment using the API?

Description: When creating an entity (text, tables, attached files, chemical drawings, etc.) in an experiment using the REST API, I'd like to specify the page and location where it should be placed.

Solution: The current API does not allow specifying layout location at the creation time. The supported workflow is a two-step process: 
    1. Create the content.
    2. Move it to the desired page and index using the layout location endpoint.

For additional information on how to use the layout location endpoint, please review these articles:
- Signals Notebook: How to change the location of Entities displayed in a Page of Experiment using API 
- Signals Notebook: How to move the entity/content location from one page to another within the same experiment using the API