Yes I was tried on both. Can you please explain me the end to end process, so that I can conclude where I am going wrong.

I am using adobe 6.2 version where Paragraph1, Heading1, Heading2, Heading3 formats are available by default and I have to add more.

Yes it is related to adobe experience manager. I have found a solution in the url: Configuring the Rich Text Editor , but i am not getting after adding richTextBox node, is there any configuration is required to use it in my dialog js file.

I have added richTextBox in my xtype js file where I have added paraformat plugin. Here below is my code for that ;                 "rtePlugins" :{                    "edit" : {                        "features" : ['cut', 'copy', 'paste-plaintext']                    },                              ...