Feedback: Need more guidance for using expressions in X-axis and Y-axis

[W-L-W]

W&B employees: Please file a doc JIRA instead, using this template: https://wandb.atlassian.net/secure/CreateIssueDetails!init.jspa?priority=3&pid=10026&issuetype=10047

No examples for how to use expressions.

How do I get multiplication in expressions for x or y axis???
I think there should be a link to extensive examples in the docs so I can see what capabilities the expression functionality has.

[johndmulhausen]

Re: the bottom of this section: https://docs.wandb.ai/guides/app/features/panels/line-plot/#individual-line-plot