Hi Diego, you question is a bit vague. You should try to be more explicit about what is holding you back to get better help from the community.
However, I try below to answer your question in general, or you can watch this tutorial of my on youtube: https://www.youtube.com/watch?v=f5cv-BWTiYM
Create a domain model with a one-to-many relation between 2 entities:
- The page parameter (no idea which entity it is)
- The entity bank
On the page configure a page parameter and add this as a data view on the page.
In this data view, add an list view with the entity 'bank' through a datasource microflow or association.
Above the list view add a button to add a new item. The OnClick of this button should activate a microflow in which you run the 'Create Object' action.
In the listview show the details and add a button at the end of the line to delete the line. This button should also has an onclick action 'call microflow'. This microlow can handle the deletion of the object.
I hope this helps.