Ok sorry for taking so long to answer, I'm back. For the first question, the answer is No, I am using the Bogotá scenery created by PKSIM but I assume the default scenery should have the same problem, the design of the airport itself leads to the problem this topic is all based on. Now, for the second one, I specifically posted because the pushback from gate 89 in the Bogotá airport (PKSIM) is impossible to complete without making a really crazy turn around of the aircraft during the push which is obviously not done in real life. Anyway, it´s glad to know that you people at FSDT are working to implement the feature.
You can close the topic if you wish, thanks for all.