How do I install Mira_Tools addon? I've put the MiraTools directory in the addons - nothing I can do will make it show in the addons ion user prefs. The *.py files are there, including init.py, but nogo. I can see all the other addons in that directory enabled &amp; otherwise, vut not Mira_tools. Anyong got any ideas? I'm using Blender 2.78.

ok I am using the User Prefs, I've added addons before &amp; they work. This one remains invisible.
I'm aware there are other addons in the pack. I have found the issue. I uninstalled V2.78, reinstalled it - still nogo. Then went to V2.79, still nogo. BUT on another machine using either 2.78 or 2.79, it works great. The issue is 32/64 bit OS (Windows) Mira works fine on my 32 bit machine. I have come across this before - there is still some bug between 32/64 bit directory listings (I'm sure it's an OS thing) where some files become invisible in that they won't &quot;parse&quot; but you can still see the listing in a dir. I've now seen this about 4 times, it screws me up once every two years, and it's still there. So - I appreciate your help, problem solved and - don't get caught!
From the information available on the Mira-Tools Wiki page:


Download the zip archive for the development version.
Unzip the downloaded file.
Copy mira_tools/blender/addons/mira_tools folder into your user addons folder.
Refresh Blender's add-ons and enable the add-on "MiraTools".


Apparently the ZIP they ship contains all kinds of data, it's not just a Blender add-on. This means that you cannot install it via Blender itself, but have to do it manually. Their issue #22 also complains about this.