What are the tools that I can use to make Dynamics AX, V3.0, V4.0, AX2009, and AX2012 Security Management easier?

There are multiple tools.  There is a free tool from Microsoft called the Dynamics AX Security profiler.

https://community.dynamics.com/product/ax/axtechnical/b/daxit/archive/2010/04/30/dynamics-ax-2009-8211-user-group-security-profiler.aspx#comments

Arbela Security Manager for Dynamics AX is also a more advanced and easier solution for setting and managing security.

http://www.arbelatech.com/products/security-for-dynamics-ax