private void InternalUnpinAndTranslateImportInstance(Autodesk.Revit.DB.XYZ translation)
{
TransactionManager.Instance.EnsureInTransaction(Document);
// the element must be unpinned to translate
InternalImportInstance.Pinned = false;
if (!translation.IsZeroLength())
{
ElementTransformUtils.MoveElement(Document, InternalImportInstance.Id, translation);
}
TransactionManager.Instance.TransactionTaskDone();
}