Toggle Down Dictionary Selection, or

As a fiction writer, I have created my own dictionary for the novel I am writing. If all Dictionaries are ticked (via Tools/Options/Language Settings-Writing Aids), the created dictionary is applied to all documents, as is the normal dictionaries to the fiction document.

Instead of having to go into Language Settings every time I open the fiction document, deselecting normal dictionaries so only created dictionary is active for fiction document, and then doing the same process vice versa when changing back, would it be possible to integrate a dictionary toggle in the toolbar as a drop-down menu just like the font style and size toggles?

Either the above, or designate specific dictionaries to only be active with chosen documents.
E.g. The Fantasy Novel would only ever open with the Fantasy New Novel Dictionary in use. And all other Documents would open with standard use Dictionary.