Android Question Question xCustomerListView

Hi Guys
I have a question about post by Erel (26 May 2019) regarding
"[B4X] CLVExpandable - Allows expanding or collapsing xCustomListView items"

https://www.b4x.com/android/forum/t...g-or-collapsing-xcustomlistview-items.106148/

Two buttons appear when an list item is expanded, they don't appear to do anything - is that correct?

Also, I would like to know how to catch a click event from these buttons if that is possible.

Regards
Dave