How? Is it possible?
I couldn't find any variable for it neither in Documentation nor terminal.ini. I tried putting a pending order very far and delete it, also invalid price market order, no success.
I also don't like the win api idea.
I might make my own buttons at some unspecified moment in the future.
Use WHRoeder's adaptation of the "order_graphic_tool" as inspiration ... https://www.mql5.com/en/forum/63949/page6#comment_6338938