History statements are based on an obscure DID not traceable by FIX API

Please forgive me to say, how on earth can be possible to reference the trades in a "history statement" (from the cTrader platform) without an ID that can be obtained from FIX API.

The FIX protocol gives access to 2 types of IDs via the "Execution Report" .
The "cTrader order id" as "OrderID" (tag = 37) and the "Position ID" as "PosMaintRptID" (tag = 721).
Obviously there is one OrderID for opening a position, and another OrderID for closing the same position, since the OrderID refers to an order and not to a position.
However in the "history statement" what is described (and needed) is the positions form start (or from entry or open) to close and not the orders.
So I think that the only logical reference ID for a "history statement" must be the PosMaintRptID.

The "PosMaintRptID" remains the same throughout the complete trade from open to close.

In the current "history statements" is used an obscure "DID" which comes from nowhere.
This is really amazing!
The "DID" is not the "OrderID" neither the "PosMaintRptID".
And funny enough (though the funny is not for account statements), there are more than one "DID" for each trade (as shown in the information panel of each trade).
There is no way to get that "DID" from FIX API.
I suppose the purpose of the "history statement" is for a person to compare his own records for each trade, with those exported from the cTrader. For that it needs a common basis, a common reference, a common ID. But there is no common ID between the "history statement" and the FIX API. As it stands at present, the "history statement" is almost useless, if not extremely irritating at intellectual level.

Sincerely.

PS.

A similar problem is in the "Positions" panel of the cTrader.
The Positions ID is probably the most important element to be displayed.
All other information is useless if it cannot be identified and know for what it stands.
You may see at Metatrader for instance, the position ID can be seen immediately.
To my view, this is called "respect".
Ignoring the Positions ID from the immediate display, to my view is "disrespectful" to the whole process.
Unless it is suppose to be a toy like gadget for clerks entering trades by typing with one finger, in 9:00 to 5:00 office hours.
What use is to have peculiar graphical designs directing to manual invocation for extra-terrestrial-info in secondary panels (the Position ID is somewhere in the secondary extra-terrestrial) that do not leave much space in the panel for the most essential.
Obviously one compensating thought that comes to mind, is that for FIX created trades, it can use the field "Label" for identification which is in immediate display in the "Positions" panel.