Change states of Multiple Objects using a single trigger

Hi all,

Is there a way to change the states of multiple objects using a single trigger?

For Example, I have 10 buttons and each with have its selected state and normal state. on clicking any button, the state of that button should be changed to selected and whichever button selected before will turn normal. 

Is there a way other than writing 9 triggers for all the 10 buttons to change the state of the other buttons to normal?

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