How to create a matrix for Multidimensional Scaling


I have the answers from a few respondents with comparisons between organisations. In spss he respondents are in the rows and the variables (columns) are called: Rotary - Unicef, Rotary - Amnesty, Unicef - Amnesty etc.
I now want to create a matrix with the responses in it (of one respondent). How do I do this?

I have searched the internet for this and I have looked at the spss help options, but I couldn't find anything about this. Most tutorials on Multidimensional Scaling start at the point where they already have the matrix, but I want to how how to create this matrix using spss.

I hope that someone can help! Thanks very much in advance :)