Creating a table from a query

[jg80]

I think you may me looking for dynamic columns:

Dynamic Column Settings

I populate a table from an sql query that returns different columns depending on previous choices. However in any case I want to be able to choose which columns should be visible. So I used a multiselect component which fills with the columnnames of the table. Now I don't know how to edit the "Dynamic Column Setting" in the table to show only the selected from the multiselect columns. Any help would be much appreciated