Most of you will know the answer to this question but for the new comers, you can bind a Horizontal Section and Vertical Section to a List object and the section will repeat for each member of the list, the idea is cascading sections with coach views bound to list.currentItem, a BO with the domain model structure can trickle down into similarly arranged sections subsections with iterating views.
if you have a button in one of these iterations it will fire a single boundary trigger but you can obtain the list element for which it was triggered by using the method described in this answer
https://bpm.tips/229/button-table-control-know-which-button-clicked-index-some-data?show=229#q229