Multi camera render addon issue I wanted to render at 1 click all setup cameras. So i found the addon Multicamera Render from here

With the camera selected in the render tab with the multicamera render button 



I click but there is no respond or no process bar and blender hang. Is this the correct way im using the addon or some other method. Is there any other addon or this will work fine. Multi camera Render at one click
I downloaded and "installed from file" this script in 2.79:

https://raw.githubusercontent.com/lapineige/Blender_add-ons/master/Multi-Camera-Render/multi_camera_render_v2-1.py

Then, selected both (2) cameras and pressed the "multiple camera render" and it produced 2 images, as expected. 



With the addon default settings (empty directory) those images were created in the blender folder itself (I use a zip blender version); selecting a folder on my desktop as "directory" they were created in that folder, as expected...