This is excellent!
I greatly appreciate the access control and the possibilities it opens up for my planned site.

I am wondering how granular this might be. For example, can a view's permissions be restricted down to certain individual users somehow? I want to have viewable content that can only be accessed/viewed by certain roles (e.g. Administrator, Staff) AND individual user(s) (e.g. a specific client) to which the content pertains (e.g., a client's data, entered by them or someone else). Also it would be ideal for the individual users (clients) to be able to grant revokable/limitable access permissions for other specified users (e.g., a client's group affiliated with parts of their data, or a trusted contact who can see more but perhaps not all of the particular data relating to an individual client).

This demonstration definitely gets me a lot closer to being able to implement my ideas. It may even be able to be adapted if I change my ideas around a little bit. But it isn't really quite there yet, or I'm missing something, like how to change the options under permissions, because simple roles won't do and they can become quite elaborate if I'm trying to create my intended level of granularity without having the option to search and specify individual users with various options for who can control access and see various data elements (fields). I also don't want the clients to be able to accidentally or intentionally remove the ADMIN/Staff roles who should be able to access ALL content. I'm sure what I'm describing has been desired and probably figured out by someone already. If your aware of any solutions, could you please direct me to a link or a tutorial on how to implement this granularity to access control? This is the most major and necessary backbone for any "features" I will implement on my site.

Thank you!

-Steve