Applying custom filter for backoffice listview

Questions
1

Hello,

We are doing a simple seminar registration in our website using umbraco. I just wanted to seek for help on how to create a custom filter using the backoffice list view? Are there any resources you can give for me to use?

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Attached is the screenshot of our page, and we want to filter the list based on the seminar or seminar date attended.

Thank you!

This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/90054-applying-custom-filter-for-backoffice-listview