After installing the plugin you will be able to see a Catenda menu tab on the top bar.
In this menu you will find the window "Catenda Hub Issue Manager" which contains the "Catenda Hub Issue Manager Palette".
In order to start using this palette either a floor plan or a 3D view will have to be opened.
In the palette you will be able to:
Navigate to your Catenda Hub project
See and make issues
Download and upload models and revisions