In regards to my question as if how to modify an existing form in SAP without coding by using the B1 standard customization (like changing description of fields, show/hide/order matrix columns, etc.).I will highly appreciate if some one tells me the entire path to do that.
To change field(Static) description-->Hold Ctrl Key and double click.
To Hide and Show columns in Matrix Click the form settings button (5th menu When you start from help) One form will open Under that select Table Format and Check the check boxes as per your requirement.
Hope it helps,please reward points if it helps