Help to setup an archive page

Hello everybody,
Im trying to build a beautiful Archive Page for all Articles i've made.
Before i can start i have some questions which i can not answer my self with the Articles entry in Modx Docs.

First:
Advanced Settings Tab -> Archives Options -> Archive Listing Chunk
Default: row
I want to edit this "chunk" or at least look at the used Placeholders but i cant find it!?
There is no "chunk" called row.. even at core/components/articles/elements/chunks

Second:
Where i can find a list with all available Placeholders?
By searching in sample chunks i found some like [[+year]] , [[+row]]
Via Trial&Error i discovered another one: [[+month]]
So where i can find all?

Hope you can Help me, or point me in the right direction to help myself.

Thanks.