execute : enter
 
enter
Use this command to go from global commands to a specific virtual domain (VDOM).
Only available when virtual domains are enabled and you are in config global.
After you enter the VDOM, the prompt will not change from “(global)”. However you will be in the VDOM with all the commands that are normally available in VDOMs.
Syntax
execute enter <vdom>
Use “?” to see a list of available VDOMs.