Q3. How can i switch off the tangent edges?

• Right-Click the view and select "Properties" on the contextual menu (Fig.1)

• Switch the fillet mode from "Boundaries" to "Symbolic".

• Click ok to confirm. (Fig.2)

• Remark: This option is not valid in IGES or STP because the system cannot recognize fillets on the model.

(Fig1)

(Fig2)

(Fig3)