Once custom properties are defined in the Red Hat Enterprise Virtualization Manager, you can begin setting them on virtual machines. Custom properties are set on the Custom Properties tab of the New Virtual Machine and Edit Virtual Machine windows in the Administration Portal.
You can also set custom properties from the Run Virtual Machine(s) dialog box. Custom properties set from the Run Virtual Machine(s) dialog box will only apply to the virtual machine until it is next shutdown.
The Custom Properties tab provides a facility for you to select from the list of defined custom properties. Once you select a custom property key an additional field will display allowing you to enter a value for that key. Add additional key/value pairs by clicking the + button and remove them by clicking the - button.