Virtual Agent

Currently, I want to make ZVA chatbot rule-based whenever end user click on "info A" button, any further question asked will only take knowledge base that has been categorized with "info A" related data. my question regarding this : is it possible program it?if it's possible, may i know how to program it?may i need any prior programming language to program it?

I cannot log in to the training center and keep getting the message : something went wrong???

I am logged in and the Virtual Agent stays open with no option to close it. It is blocking the right hand side of my screen.