You can use the Scroll Table layout macro to define table column widths.
To define column widths, specify them in the widths field. Separate the columns by comma, without whitespaces. Each width can be specified relative (for example 2*), as a percentage (for example 30%), or pixels (for example 120). The types can be mixed. The relative approach will always use the maximum of the available table width.
To apply the layout to a specific table you have to insert the macro directly before the table. The Style field for this macro is currently only compatible with our Scroll Office app.