In the QV desktop application, just hit F1, this should open the Help. There you should find a complete description of the syntax for all functions and commands available in QV.
I haven't fully understood your second request, sorry. Are you talking about loading a field only when a certain value is '01' (where do you get the value from?)?
Since there are some differences between QV and other BI tools, I would recommend looking at the tutorial, that you can download together with the reference manual from the download page.