Dimension into buckets in CJA

[RajatAr]

Hi Team
I am using CJA and I have a dimension which has multiple values
i.e.
Dimension (let's call it websites)
a
b
c
d
e
f
g
so on

I want to check the usage of this Dimension based on my customers i.e.
                    website Usage 
customer1   2 website
customer2   5 
customer3   9
customer4 12
customer5  1

Is there possible way to create such metric from this dimension ?

[Deepika_S_V · Accepted solution]

In Adobe CJA, you can create a calculated metric using the Distinct Count function on your website dimension, with Customer ID as the breakdown. This will show how many unique websites each customer has interacted with.

[RajatAr]

Thank you for your Answer
One more add on - Can we also create buckets by these numbers ?
i.e. 
1-3
3-6
6-9
9-12
12-15