How to change a Light Group created with Helpers GUI

Hi Community, I’ve created a Light Group using the Helpers GUI. At later stage, I had need to add one more light, but editing the exsisting helper the GUI is preventing me to change it by adding new components. Do you know what am I doing wrong ?
I am running Home Assistant 2023.1.7 Supervisor 2023.01.1 Operating System 9.5

In the settings tab for the light, there’s a group options button.

Hi Petro, my issue is related to changing an already created Group, I cannot see how to change it (see attachment GUI)

Please try clicking on the button indicated in the following image.

cool - Thanks!