Problems accessing deep structures in ABAP server proxy implementation

Hi

I am trying to implement a synchronous method for a ABAP server proxy.

The return structure of the synchronous method ( back to XI ) is two-dimensional ( i.e a table ). While I implement the method, I am not able to access the fields of the return table structure i.e output-MT-Table-field

I get a syntax error - while I try to access the table field through the output & the MT structures..

I did not see any examples/weblogs of ABAP server proxy synchronous communication passing back a two dimensional return structure back to XI...

Any links, suggestions regarding whether its feasible to return two-dimensional ( table ) structures in ABAP server proxies - in a synchronous mode ??