Could you please let us know , what options are you missing while exporting the images from Lightroom.
As i remember, CMD+E caused that there should appear window with options related to export operation, like - path, file format, quality... (and probably also related to saving own export preset)
It is also visible in tutorials available on adobe help pages.
That should be Shift Command +E. or from the Menu Bar file>export.
Yeah - true - but my problem is not related to wrong shortcut. (i mentioned "edit in external editor" and it works properly) .
Calling "Export" command from menu is giving no result. To export picture, i can only use predefined, out-of-the-box presets or my "last used preset" (which is even not displayed on the list of saved presets - same as other presets which i had before)