How to change the behavior of built-in Flow Designer steps

Question 

Can I modify a built-in step or trigger provided by xMatters to run additional code?

Environment

All versions of xMatters

Answer

You will need to copy a built-in step or trigger to edit it with custom code.

Steps:

1. In the Flow Designer palette, click the settings (gear) icon next to step or trigger you want to configure.
2. Select Copy as Custom Step/Trigger to create a new custom step or trigger:
   
3. Give the step a new name on the Settings tab then click the Script tab to modify the step/trigger's code:
   
4. Once you've made your changes, click Save. (Custom steps or triggers can be found in the Custom tab of the Flow Designer palette.)