Dear Biil,
you must export your model (modelName.obj) with info file (set to true the “General Settings -> Export info file” in the “Export Model” dialog and it will create modelName.rcinfo). This file must be available also side by side with the modified model you are about to import. If you are importing modifiedModelName.obj then just copy the modelName.rcinfo to modifiedModelName.rcinfo … If the application finds the rcinfo then it will use it to place the model to correct local coordinate system.