You can do this. We cover the full details in our article on Contact Management, but here's some of the pertinent information copied and pasted:
Customize the Display of Your Contacts
Hover just to the left of the column heading, then click and drag the < > symbol to resize the column.
Add New Column Headings
Customize the fields that are displayed by clicking the + Add Column button in the upper right-hand corner.
Popular columns to add:
- Bulk Email Status (to see who can receive your email)
- Date Modified (to see the last contact added / edited in your collection)
- Date Added (to see your newest Contacts)
There is more in the Contact Management Overview article!