Method 1
Right-click the Simulink canvas and select Xilinx BlockAdd.
Method 2
Execute the short cut Ctrl 1 (one).
Method 3
From the Simulink model pull down menu, select the following item:
Right-click the Simulink canvas and select Xilinx BlockAdd.
Execute the short cut Ctrl 1 (one).
From the Simulink model pull down menu, select the following item: