Documentation for Static Parameters in BEx Analyzer

Hello,

I was searching for a documentation for the static parameters in BEx Analyzer for quite a long time. I took a look at the Web API reference but it seems that not all the parameters work in the Bex Analyzer.

When inserting a button to change the query for a dataprovider there are following entries:

DATA_PROVIDER 1 DP_1
CMD           1 RESET_DATA_PROVIDER
RQV           1 X
PROFF         1 X
INFOCUBE      1 0DEMO
QUERY         1 DEMOQUERY

What is the meaning of the attributes RQV and PROFF and where can I find more possibilities for entries?

Is it possible to call a query with variables by using VAR_NAME i.e.?

Appriciate, if someone could give me a hint. Thx in advance!

Regards,

Marco