using TSG = Tekla.Structures.Geometry3d;
using TSMU = Tekla.Structures.Model.UI;
Model myModel = new Model();
TSMU.ModelObjectSelector modelObjectSelector = new TSMU.ModelObjectSelector();
TSMU.Picker picker = new TSMU.Picker();
TSG.Point p1 = picker.PickPoint();
TSG.Point p2 = picker.PickPoint();
Vector v = new Vector(p2.X - p1.X, p2.Y - p1.Y, p2.Z - p1.Z);
foreach (TSM.ModelObject item in modelObjectSelector.GetSelectedObjects())
{
Operation.MoveObject(item, v);
}
myModel.CommitChanges();
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