Explore - How to regroup low values

Hi,

I've made a report which does count the number of tickets per values of an attribute.

There's a lots of low values like 1 or 2 and I would like to regroup them in a new value “Various” of this attribute (so instead of having X lines with 1 I would have one “Various” line with the sum X)

How can I achieve this ?

Regards.