Paco Cabrera With your approach, do you believe you will have to be displayed twice on that chart, as part of two separate marriages, and only one marriage should have kids, correct? I believe that would be totally different layout, not the one we currently support.
Family trees are very complicated topic and there are so many different ways how to draw them depending on what you are trying to demonstrate, and in any case you will be doing some simplification if you want it to be presentable. You will have to give up some part of information in order to make what you want to be shown look easy to perceive.
When designing family tree feature in Tonfotos we only implemented few most basic scenarios. Our primary goal was to make it possible to create print-ready tree with one click. In order to achieve that we had to put some limitation, and only portion of available information is displayed. Unfortunately, that means that in some cases, like yours, our approach is not the best.