An issue that has been bugging me for a while (at least, it catches me out).
If you have orders pending in the DOM, like many other traders who scalp, I sometimes pick up the exit limit order, ready to move it. However, if it fills by itself before I got a chance to click on the numbers and move it, the DOM can be left in an odd state. What I mean by that is that if you forget, then try to click the DOM later to place an order, nothing happens. That last pickup of the limit order is still lingering, even though the order was already closed. Then, you've missed the opportunity whilst you figure out why the DOM isn't working. Pressing escape to cancel the previous pickup of the limit order puts you back on normal mode.
It would be useful in charttrader and the superdom (I noticed I think charttrader leaves the cursor in order placement mode too), if the move in progress would be cancelled if the order in question is filled.
Make sense? It seems like a sensible thing to do with no downsides to me and prevents leaving the SuperDOM / chart in a state where you can't quickly execute. There would be no reason to leave the order placement in progress active if the order has already filled?
Thanks.
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