Tickets Opened on specific CI in change Management

Hi Experts,

How to create buttont on change form, so on selecting the Affected ci it will display the opned tickets on that ci. 

The same option is already available on the incident Mangment module to show how many tickets opened on that ci. 

I found that this is done through context wizard. i can't replicate the behaviour on the change management module. 

Appreciate your notes