Hello @soumyabg,
As per my understanding, a “simple” Column Expressions” will do :
Example : From start to result :
For your dataset the formula should look like this :
if (column(“option_present”)==“False”) {
join(column(“question”),column(“answer”))
} else {column(“question”)}
Ps: You have to check “Replace Column” in the node
Basic Javascript : JavaScript | MDN (mozilla.org)
Br,
Samir