Linking a controller button assign to follow the selected track

[Armando Rivera26]

Hi to anyone that can help.

I mapped out Mixbus EQ to a controller, and everything works, but it only works for that 1 track, If I select a different track it will still control that the previous track.   How can I  make the mapped out EQ controller to follow what ever track I select?
Is that possible?
Thank you in advance.