Does the FXCM API support OrderLimit? If not is there any broker known that does?

As far as I know something like this should be prevented by OrderLimit or is it still a matter of slippage? From trade log:
Code:
[1158: Fri 18-03-02 14:17:01] (1.37795)
2018-03-02 14:17:55.4555
Asset: GBPUSD_FXCM, Price: 1.37750, Spread: 0.00001, Commission: 0.00007
OrderLimit: 1.37746
[GBPUSD_FXCM::S5254] Short 1@1.37694  at 14:17:55.

Is there a chance to simulate OrderLimit if it is not directly supported by the API or on MT4 accounts?

Thanks, Sphin