Thank you very much Tom!
It both works (brands, product attributes)!
I used propabbly improper shortcode or improper taxonomy name.
Can I have another question?
Is it possible (ist there some shortcode) to ommit whole XML tag or even whole XML block, when is some attribute empty?
Then would this plugin be perfect!
But I know – such a feature is not so easy to implement, because it should work together with all other shortcodes.
Such a
[omit_if_empty_start][some_test_shortcode]
some xml text and other shortcodes here
[omit_if_empty_end]
or
[omit_if_empty_start test_shortcode=”some_test_shortcode”]
some xml text and other shortcodes here
[omit_if_empty_end]
Thank you, Radomir