This is what was on the link to make it easy for everyone here,
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We do want to add the ability to create bracket trade buttons (i.e. the ability to have more then one order be sent per button,) however I'm unsure when this can be made available.
Regarding the ability to edit an order, I haven't tested this out with IB directly, but this should be able to be done from within the Order Ticket's Active Orders area. As seen below, I'm editing my Stop. Once I have the new value in the field, clicking on "Update" should send the update to IB. If the Active Orders area has been turned off, you can turn it back on under Edit Template, Properties, Show Active Orders.
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