Is your feature request related to a problem? Please describe.

I would like to compare the metrics of my experiment against someone else's public metrics.

For example, bmazoure has a benchmark project that shows the performance of PPO in procgen environments. When I implemented my own PPO, I want to compare my results with his results directly in a report since

1. his results are already tracked in W&B,
2. his W&B project is public and so is the results,
3. I don't want to re-run his experiments in my projects (could be a waste of resources).

Currently, I can do this via a bit of hack:

• I can clone their report into my project
• Add my project into the panel grid's run set
• (IMPORTANT) de-select their run set (if I don't do this, I cannot select metrics from my own project when adding a chart)
• Add a chart from my project
• Compare (woohoo!)

Describe the solution you'd like
The process is a bit convoluted and most people probably don't know. Ideally, I should be able to add a run set from an arbitrary public project.