To specify in the description of a lab task the credentials of the VM for a student to log in, use predefined variables.
To add to a VM-based lab variables that will pass the VM credentials, complete the following steps:
In the LMS authoring interface, go to Authoring > Labs menu.
Open your lab.
Go to the necessary step.
Start typing the description of a step. When you need to specify a variable, type a curly bracket { to display a list of variables for selection. See Adding custom variables.
Click the required variable to insert it in the text.