MultiGrid command - This is for Consensus Analysis of identical grids and MultiGrid comparison.
In the second case it is the Eigenvalues of each of the selected grids which are used as rows (constructs) to compare the grids as elements (columns).
Once the system detects and accepts that you want to perform a MultiGrid analysis,
you are given the choice to automatically recalculate and resave all the grids to bring them to the required version so the MultiGrid routine can extract the EigenValues from each grid.
Additionally the MultiGrid saves enough information from the individual grids to allow you to use the opposite mouse button to call up the underlying grid and then used the "Prev" button to reload the MultiGrid.