In a windows console application I want to add a TUI (Terminal User Interface). I want to create some tabs. In a tab I want to show the logs of the application, so there must be many lines, I can append new lines and I should be able to scroll the area, in order to see the older logs. My problem is that I'm not able to create a scrolling area, even if I see the scrollbar.

This is the sample code:

#include 
#include 
#include 

using namespace ftxui;

int main() {
  auto screen = ScreenInteractive::Fullscreen();

  // Create a scrollable area with many lines
  Elements scroll_content;
  for (int i = 0; i < 50; ++i) {
    scroll_content.push_back(text("Line " + std::to_string(i)));
  }

  auto scrollable = Renderer([&] {
    return vbox({
      text("Top Widget"),
      separator(),
      vbox(scroll_content) | vscroll_indicator | frame | size(HEIGHT, LESS_THAN, 20),
      separator(),
      text("Bottom Widget"),
      }) | border;
    });

  screen.Loop(scrollable);
}

And this is the result on my windows machine:

As you can see I've the scrollbar to the right side, but it does not work.

I'd like to achieve two results:

1. The area must be scrollable with arrow keys and/or mouse

2. When I add a new log line I want the panel to scrolls automatically to the end in order to see it.

How can I achieve those results?