Using OpenType features in paragraph styles

[Naomi22981050q2ym]

Hi, I'm fairly new to using the options OpenType fonts allow. I've been able to find the different style sets you can use. The problem I'm having is that I want to only change the letter 'a' throughout our corporate identity. But the available sets change multiple letters. Is there an option where I can make a (paragraph) style or a different set where only the 'a' changes? Because manualy changing every 'a' is not realy what I'm looking for. 😉  Hope my question is clear, help would be greatly appreciated! 

[jmlevy · Accepted solution]

You can setup a GREP style to apply this specific stylistic set to the letter “a”

[Naomi22981050q2ym]

Thank you, had to figure out GREP styles aswell but it worked like a charm! Learned a lot today.