Action Reference
All actions are listed left and sorted alphabetically. However they are categorized as well in global, track and clip actions. you can browse through the categories link on the bottom left.
general use: From Update 1.2 on, all actions have a builtin test / version function. e.g. for addquotes:
[] addquotes --test
or [] addquotes --vers
will show you a message in the status bar like so:
this will tell you for each user action individually if they are installed correctly.