Well, I’m looking for a row card to hold 2 or 4 sub cards. These cards should only display the value of the sensors. Some custom text colors for the ranges. If you press one value a dropdown div should appear with the long term graph values of this sensor. The dropdown should be row width, so not just under that one sensor card. energy-period-selector-plus gave me the best result, so far. And I could build it that way. But then I would need to “hard-code” it in every view whery I use this. This is why I would wish to create my own (private) custom card.