Select column dynamically

So.... it seems that setting my columns dynamically this way with text or select inputs is only possible with the "old" table component, and doesn't work with the new one?

on the "new table" (is that right?) i have tried to do the same but nothing happens... all the columns of my database are displayed... or am i doing something wrong ?

i have tried to map a new column in the new table component, the column id is ok
but no values are displayed, what should i write in "value" field so the data of the chosen column can be displayed?

or do i have to keep working with the 1st table? what is the difference between the 2 please?