Hi @zuko
Welcome to Dhan community. We had evaluated this, 20 depth in the past and have put this aside for the moment.
20-depth implementation takes up a lot of bandwidth, and we are unsure of the outcomes. Know that few broking platforms did implement this - but we have observed lags in those updated and at times it works for few stocks and does not for other.
For now we are improving our user’s experience with features on core trading & investing side.