Need a Script to add rows by clicking on Button

Thanks for the reply.
I created a canvas but I am unable to link the script to a buttton. Attached canvas has a 3d shape Row+. I want a button similar to 3d shape(Row+) and once I click on this it should run the script
|Matrix1::B|.children.create(10)

So, How do I add a button to canvas in quantrix? and how do I link this button to the script?

Thanks