For adjustments of your contacts information or adding personal notes you can use hubsells edit mode. It can be found above your contacts in the contacts overview.
Once you activate it, you will notice that the checkboxes left from your contacts first names change to a "pencil-icon"
By clicking on this icon, the information in its row can be altered with the dropdown menus and text boxes.
If you want to get a better overview and only work on the most important information, we recommend to deactivate columns which you don't need.