Donwload the "[Display tools][1]" add-on and assing a shortcut to the "wire on" option 

![enter image description here][2]

This allows you to apply effetc to multiple selected object at the same time.

This is a way in wich you can hack the problem.


  [1]: http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/3D_interaction/Display_Tools
  [2]: https://i.sstatic.net/kqctf.jpg