Cross-tab marketing analysis with using Unique Visitor metric
hi.
While I am working on marketing channel analysis, I read about cross-tab marketing analysis.

Is it the proper way to use Cross-tab marketing analysis with using Unique Visitor instead of Order?
If it is, what would be the correct interpretation for the data?
Example: Column: Last touch channel // Row: First touch channel, Metric: Unique Visitor
First touch channel = Paid search & Last touch channel = Email >> 5
- The number of visitors who visited our site via 'Paid search' on his first visit and came back to the site via 'Email' on his last visit is 5.
Is it correct?
Thanks,