It should work per default, as FSDT does the customisation for their own airport but do check that you are using the latest version of their airport through the FSDT installer to ensure that updates for GSX from FSDT airports are received.
It should work per default, as FSDT does the customisation for their own airport but do check that you are using the latest version of their airport through the FSDT installer to ensure that updates for GSX from FSDT airports are received.