How to switch audio programmically in sequencer?

Hi all,

I am doing an story sequencer based project.
I need a functionality that audience can choose language and switch between 2 voice-over audio tracks.
That is, in the sequence there are 2 different language voice-over audio tracks, I want only one of them is active.
How do I switch on/off these 2 audio tracks programmically?
Or any other method for doing this functionality?