FSX Legacy_LWM_Land_Flatten equivalent

#1
Hi,
I want to add elevation to some Halong bay islands I traced with FSXKML. I succesfully add altitude with SBuilderX but it is very long. For me FSXKML is faster. In SBX I used Legacy_LWM_Land_Flatten. What is the equivalent in FSXKML?
Thanks
 
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