Reading and Entering Cell Values in BEx Analyzer using macro in vba

I want to write a macro(written in vba) in BEx analyzer to read a value from a cell (say B10) from sheet SHEET-1 and enter that value in a cell (say D11) in sheet SHEET-2.
Can anyone tell me how can I do this in BEx?
I have designed the macro in MS Excel but this is my first time in BEx Analyzer, so kindly help me out here.