I'll try the Urwumpe's plug-in.
EDIT:
How do I activate the plugin?
Create a folder "plugins" inside the folder where you placed anim8or.exe. Then put the extracted script file (a simple text file containing script code) in the new folder. Start Anim8or and select the menu "File", then "Configure". There you can set the plugin folder to the new one.
Usually, it is the same as the root anim8or folder (Where you placed anim8or.exe), but I recommend having a special plugin folder, so you can more easily test new scripts, as there seem to be quite a number of helpful scripts now.
After you have installed the script by extracting and configuring anim8or, you just restart anim8or (close and restart)