Button labels for creating resources are inconsistent:

• VirtualMachines, InstanceTypes, Preferences: "Create"
• Templates, MigrationPolicies: "Create <resource>"
• Bootable volumes: "Add volume"

"Create" button menu choices have inconsistent prepositions:

• VirtualMachines: Create -> From template/voume/YAML
• Bootable volumes, MigrationPolicies: <button> -> With form/YAML