Order Quantity per order

How does one buy huge quantity when there is a limit for the quantity. Why cannot we have a repeat button on the order menu.

Now Banknifty options are capped at 2500 pr order. Now if one wants to buy say 80000 then we have to place 20 orders. It might be OK when buying but selling time is crucial.

Other brokers do not seem yo have this issue. Any solutions?

There is a repeat order in the order book. Check this

This restriction is from the exchange, it is the same for every broker.