| 1. |  'Molecules' opens the dialog window for selecting the structure files; |
| 2. |  'Descriptors' opens the dialog window for selecting/calculating molecular descriptors; |
| 3. |  'External variables' opens the window for loading user-defined variables; |
| 4. |  'View results' opens the worksheet that displays the values of the calculated molecular descriptors; |
| 5. |  'Export' opens the window for saving the calculated descriptors; |
| 6. |  'Viewer' opens the molecule viewer; |
| 7. |  'Statistics' opens the window for univariate statistics and charts; |
| 8. |  'Correlations' opens the window to analyse correlations among descriptors; |
| 9. |  'PCA' opens the window to perform Principal Component Analysis on the calculated molecular descriptors. |