Got basic text dialog working but how do we set up the Decisions Choices Widget?

I have a game that has dialog. I’ve got the text widget displaying the text now with the data table. Now that’s working, I need to know if we need to set up a Second Widget and
a Second Data Table for displaying the decisions and choices mouse options?

I don’t know how to set up The Decisons & Choices Options yet using the behavior tree. As I’m not familiar with Behavior Trees.

But can it be done by a data struct?, If so, what should we put into this data struct so the dialog can be able to Branch off from part of the
data table into another when clicking on the different text options? if there is also any other flags we need to include in the data struct, what
flags should we include?

It is a choices & Consequences type of rpg game.