Ask about oracle bi publisher on the web

I have no experience in marking reports on BI publisher web.

Now I have a case in showing data on web what I want.

a. According to chart, when I drag column A for series to make color for chart. But it shows 0 or value on horizontal axis as picture below as. How can I hidden that? [1]: https://i.stack.imgur.com/Pi78Z.jpg

b. According to pivot table, when my data has text value, it shows binary data 0 1 0 1 ( because of pivot). How can I show true value of data( text)?

c. According to BI on the web, can I write code to edit chart or table as Word Bi puplisher?

Thank you for your time and in advance.