[OSM-newbies] My watchlist interpretation

[Randy]

Can someone tell me where the documentation to "My Watchlist" is? Or if 
there is none, just help me interpret a few things. Most are obvious, but,

The blue triangle is usually beside an entry, but sometimes not. What are 
the conditions?

An "N" to the left of the entry. What does it mean. Are there other letter 
qualifiers that I haven't seen yet?

I assume that the number in parentheses indicates the number of bytes (or 
characters) that have been added or removed from the page by that edit. 
Correct?

Thanks,

-- 
Randy