Need To Create A Service Dialog For Openstack Flavor

I want to ask that, when provisioning with openstack template, In Properties tab there comes drop down list of Flavors which are basically sync by Openstack Cloud! I want to create a service dialog----> Drop Down for that… Can you people guide me what methods i have to use to!

HI @Asad_Rajput
Openstack ems have ‘flavors’ relationship. Populate your drop-down by name and id of these objects.