Describe the issue. What is the expected and unexpected behavior?
Currently we do not give the ability to customize our page main. For some use cases, it can be beneficial to give a better or more informative label than just "main." In our documentation, it has often caused repeating "main" in the VO rotor because of the page main and the example main. Adding a label will help clean up our documentation and clarify between menu items in the rotor. Products should be able to do the same.

This idea was discussed in patternfly/patternfly#2079 and while I don't necessarily think we should require the aria-label (as main can arguably be an ok label for some users), I think giving an option to create a more descriptive label is beneficial.

Please provide the steps to reproduce. Feel free to link CodeSandbox or another tool.

Is this a bug or enhancement? If this issue is a bug, is this issue blocking you or is there a work-around?
I believe this is an enhancement- give us and our users to be more descriptive in their labeling

What is your product and what release version are you targeting?