Divide curve, C input only accept 1 value

I was trying to follow this

tutorial on karamba website. At 2:08 he created divine curve and he was able to put 2 input into “C”. When I was trying to put in the 2nd one, GH deleted the first line connection. Can someone explain or help me why is this happen? Thank you!

Use shift

This is normal! If you want to consequetively add more than one input you have to hold SHIFT, while connecting the wires.

Thank you very much! It’s my first time GH.

No worries, you can also move connected wires from one input to another by holding CTRL + SHIFT, or simply hold CTRL and retrace an existing connection to remove it.