Would you please direct me to documentation for scenario design?
As per your request, here is the link to the BP Help Guide, particularly Scenario building.
https://help.brightpattern.com/5.3:Contact-center-administrator-guide/Scenarios/ScenariosOverview
https://help.brightpattern.com/5.3:Contact-center-administrator-guide/Scenarios/Voice
https://help.brightpattern.com/5.3:Contact-center-administrator-guide/Scenarios/ScenariosOverview#How_to_Create.2C_Edit.2C_and_Delete_Scenarios