But if I do this every time I get the tooltip with the data of a single series, instead I need to see the data of all the series everytime

You'll need to have different axes. All series with shared axes will be displayed by the same tooltip.

Hi Michal
Thanks for the reply
I tried and now it works!!, but in my case, i need that the tooltip always comes out, not just when you hover over the series. The type that comes closest is the category tooltip but the way I structured the template displays the data twice.
What I managed to do is this

Instead I would need something like this, done with the default tooltip

but with the ability to view it wherever you position the mouse and not just when I pass over a series.
The custom template code is this:

  <ng-template let-series="series" let-item="item" #template>
    <div>
      <span>
        {{item.Date | date}} <br />
        <button igxButton="icon" class="igx-button--icon" igxButtonColor="white" igxRipple="white" style="width:20px; height:20px;" igxButtonBackground="{{series.actualBrush}}"></button> {{item.Value[0] | number}} <br />
        <button igxButton="icon" class="igx-button--icon" igxButtonColor="white" igxRipple="white" style="width:20px; height:20px;" igxButtonBackground="{{series.actualBrush}}"></button> {{item.Value[1] | number}}
      </span>
    </div>
  </ng-template>