Missing option "Select Leaf to Color" in current webapp

[frimar1]

From the former version of this project which was the esp8266-nanoleaf-webserver, I've learned that there's an option to play with leafs . See https://raw.githubusercontent.com/NimmLor/esp8266-nanoleaf-webserver/master/gallery/interface.jpg as reference, the upper right part. I'm now struggling with the current version 4.5 of the esp8266-fastled-iot-webserver which seems not to have such an option anymore. Is there any other option to single control a leaf individually?