A group worksheet containing all the tests you want to monitor is usually created just for OL monitor. Alternatively you can use any other worksheet or leave blank to pull all tests in the lab.
You can enter multiple* worksheets separated by a comma. EX:
*Versions below 1.88t: Only 2 worksheets are supported.
*Versions above 1.88t: Up to 4 worksheets are supported. It should be possible to add support for more worksheets into the macro, if you need this please contact me.
Many labs are using a Group Worksheet to control what shows up on their OL logs.
CPL lab see this topic for Login section.