TaskExtension namespace

Hi,
I would like to know if there is a way to implement a sort of extension’s namespace

  • I have a number of plugins, MyPluginA, MyPluginB, MyPluginC each with its own extension
  • I want all the extension to have a common root says MyExtensioni

Something like:

MyExtension { ExtensionForPluginA { } ExtensionForPluginB { } }

Regards,
Luca