A number of options are available to create a new version of the internal matrix using some or all of the data currently available. They are:
1) General manipulation via an equation.
2) Transposition.
3) Screen editing (by cell or by sector).
4) Addition of two cost skim matrices.
5) Log-sum addition of two or more (cost) matrices.
6 Copying individual rows or columns.
7) Manipulation of the intra-zonal cells only.
The manipulation may be applied to the whole matrix (by default) or to selected areas (see 10.6).