A heatmap for portfolio returns would be handy

I use the Heatmap functionality overnight for my US stocks that you can get on Finviz and also on Stockstracker app. It gives a quick visual of what was up and what was down overnight. It would be cool if Sharesight could offer this for my portfolio by holdings (or the option to select which holdings) or custom group. Hope Sharesight consider this feature if they get a chance.