Number of picks as a visualization in a dash board in Logfire

Summary:

I need to Create a visualization in Logfire showing the number of picks for each user.

The cycle as following :

1- Order created.

2- Run wave to allocate the quantites.

3-task created.

4- task executed.

5-oblpn assigned automatically to a load.

6- ship the load.

I need to create a visualization in a dashboard showing number of picks for each user.

First it come to our mind to get number of tasks completed by each user, but the task itself can contain different number of picks so it doesn't showing which user worked the most in each facility.

appreciate your support to recommend the needed steps to create such a dashboard.