This script allows you to select similar poly objects.
Load the script in your script editor and save it to shelf or assign a hotkey to it.
To assign a hotkey to the script do the following:
1. Go to Window--> Setting/Preferences--> Hotkey Editor
2. Scroll in the "Categories" section to "user". (or any other category you would like)
3. Click on "New" then write the name of the script and paste the code from the script editor to the command section.
4. Hit "Accept".
5. Assign a New Hotkey. (You can query any hotkey to see if it is already assigned to any other command)