I think this is the oldest feature request. I saw this request last century, not joking. There was a simple app made to deal with it, Bracket Trader. It still works and works well.
I think they will not implement it because in the API it is easy. From the TWS UI, there are a few exceptions conditions, e.g. 3 contracts and 50% <> a round lot. All easily fixable, but they might think it is not worth their time to deal with a retail client's feature request. It has been a long time and other UIs probably have it. On the other hand the Algo offerings have been steadily increasing. I am waiting for the IB Algo detection Algo so you can do the Algo versus Algo play.
I think they will not implement it because in the API it is easy. From the TWS UI, there are a few exceptions conditions, e.g. 3 contracts and 50% <> a round lot. All easily fixable, but they might think it is not worth their time to deal with a retail client's feature request. It has been a long time and other UIs probably have it. On the other hand the Algo offerings have been steadily increasing. I am waiting for the IB Algo detection Algo so you can do the Algo versus Algo play.
