uibuttongroup values in the array without using any push-button call

Hi,

Below example after checking the Games, the test selection group will come, there I don't want to use one more push-button to retrieve the selected checkboxes values

1. How I get uibuttongroup values in the array without using any push-button call?

2. And after Run the main code, all the uibuttongroups are appearing by default, I tried values, 0 and 1 but doesn't work in uibuttongroup (i want off mode by default).