Linked Button Grid, Matrix, hmm No easy way right ?

What I would like to do is simply have a grid binded to a query with inner join and then just add a link button to the Sales Orders

In Screen Painter, I was unable to make it to the Columns with a Grid binded to a query and with a Matrix, I had the possibility but I was unable to bind a table to the Matrix so what's the deal ?

In Code, I'm able to have the linked button with a Grid from what I've read on a thread with this code...

SAPbouiCOM.EditTextColumn oLink = (SAPbouiCOM.EditTextColumn)oGrid.Columns.Item(0);

oLink.LinkedObjectType = "17";

which works but when I click the Linked Button, I get the message "No matching Records found 'Sales Orders' (ORDR)(ODBC - 2028)".... so again what's the deal ?

Thank you for your help