Tekla Truss Model Structural Update

I have an existing Tekla Structures model that already contains the full set of steel roof trusses for a live project. I now need structural modifications made to those trusses inside the model—not cosmetic... (Budget: $30 - $250 AUD, Jobs: 3D CAD, 3D Design, 3D Drafting, 3D Modelling, CAD / SolidWorks, CAD/CAM, Mechanical Engineering, Solidworks, Structural Engineering, Tekla Structures)