Filetypes dialog

help file does not indicate anywhere i can find how to enter filetypes dialog?
also likewise for commands page?
any ideas please?

Settings > File Types

and

Settings > Customize Toolbars

there is no filetypes on my settings menu .
the customize toolbars likewise has no mention of filetypes.

I am running the lite version of opus version 10.5.0.0

Ah ok, the Light version doesn't include a filetypes editor. Toolbar customisation is also more limited compared to the Pro version.