Hi mlep

Have you tried the search join field?

Table a stores the id of content in table b.....

... so use a join on these tables...

... it would look something like this in the field (unless it's changed)

id | table b | table a | article-related

Then create a field that pulls in table b.radio-select-field

and set live value to 1 as that is what you want to filter

Then have this field hidden

You might have to muck around with match settings 

Jon

Second table will automatically get joined if you add radio field from second table to the search, so you jsut need to set right matching and live value 1 on this field.

Thanks Jon, thanks Klas for your replies.

My explanations were not clear enought. I would hide selection titles in joomla article related field (those that are marked as 1 in table B).
Maybe with a WHERE condition in a dynamic selection field ? Something like

SELECT DISTINCT #__content.title AS text, #__cck_store_form_A.a_id AS value
FROM #__cck_store_form_A
JOIN #__content
ON #__cck_store_form_A.a_id=#__content.id
JOIN #__cck_store_form_B
ON #__cck_store_form_A.a_id=#__cck_store_form_B.id
WHERE #__cck_store_form_B.marker!=1
ORDER BY #__content.title ASC

But I get no result...
Thanks again for helping

If you copy-pasted this query then you have a typo, space is missing after form_B.marker