Method Community

I see that you can add tags to individual contacts within a company. I'm interested in making separate tags for businesses. For example, I have already separated out "retail" and "wholesale" in customer type. However, within that, I'd like to add other tags like "co-ops" "cafe" "chain ...

Is there a way to see the exact date a lead was entered into Method? Is there a way to see when those leads moved to customers and when those customers moved up levels in the pipeline? I"m looking for some way Method generates a report on this?

Is it possible to change a customer to a lead?