[Request]: Is there more detailed introduction or example of Query panels combined plot?

[Neronjust2017]

What is about?

Hi, I combine my two tables together through a key with inner or outer join. The new table is like this, joined on the first column, and other columns have two values (from the original two tables).

1. I want to now convert it into a combined scatter plot, with different colors for different original tables (for example, yellow and pink). How can I set the "Color" below?
   

2. Is there syntax instruction for weave expression? And how should I customize the shape or size of each point based on different column values？

3. I think the following query panel in the doc https://docs.wandb.ai/guides/app/features/panels/query-panel/ is what I can refer to. Can you share this example？