Multi-level Multi-select plugin

Property file:

Country[tab]City
United States[tab]San Francisco
United States[tab]Chicago
Mexico[tab]Mexico City
Mexico[tab]Cancun

Notice: tab key must be in between both level

Property File -> /var/lib/jenkins/workspace/ttt/parameter

Value -> Country,City

 

After above setting , multiple level multiple select can be used on dashboard of job