Inside a 'LEAD', inside the 'CLOSED ACTIVITIES' make the description visible (without opening the specific closed activity

The question in the title

When,i open a LEAD, i want without any other action, to be able to see the Description in each activity listed in the CLOSED ACTIVITY (following picture) group.

In this picture, i can't see the Description. To see the descrption, i have to open the activity 'Mail to Adrian Pop'.

I would like to be able to see the description without having to click on the closed task.

thanks