You can quickly make connections by clicking on a pin of an IP or module and, when the pencil icon is displayed, dragging the cursor to another pin and releasing the mouse as shown in the following figure.
Figure 1. Starting Connection Mode to Make Connections
After the connection is made to the s_axi_aclk pin
of the AXI BRAM Controller, the Start Connection mode offers to connect the signal to the s_axi_aclk pin of AXI IIC, or any other adjacent compatible pins. In this
way connections from a source pin can quickly be made to multiple different load pins.