Warning, the updates of this product are suspended! 

Finding the right HDRI card for a scene is quite long when you have to try them one by one. (World-Map-Manager) allows you to store more than 50 HDRI Map and change at any time, without slowing down PC performance.
Different options are available to create great composition effects.
Minimum Performance: I7 2.6Ghz/ 4GB/ GTX 950 4GB/ Windows 10.

*Note: please don't forget to take a few seconds to rate this product, the popularity of this product will allow me to continue to do research to add more functionality in future updates. Thank you in advance for your help and happy blending!                          

Features:

-Add more than 50 different HDRI cards.
-Change cards in one click.
-Switch the map to black and white at any time.
-Use the composition options to get great effects.
-Adjust the location or rotation of your card at any time.                                                                 

Watch the demonstration video.

The map hdri used in the demonstration video all come from the site (HDRIHAVEN) available for free download, I left 6 Map to serve as a demonstration, in no case it is a question of selling them.
To add more HDRI maps select the node and then press the "Tab" key to open the node, then add more maps in the texture nodes.

Ready for Blender 2.79(Cycle).