To add a property page to an object

1) Add extension : org.eclipse.ui.propertyPages. In this extension, specify:

the object class with whom the property page will be associated.

the property page which extends the org.eclipse.ui.dialogs.PropertyPage. the property page will be shown in the property dialog.

2) Add action org.eclipse.ui.dialogs.PropertyDialogAction to your context menu, so that it will be available for the selected object.