Calendar that supports custom templates

What I’m trying to do

So, currently, for my daily meetings, I am using Full Calendar as a way of taking notes of what happens and what not. Unfortunately, I’m extremely dissatisfied with the “standard” note. As a consequence, I was wondering if there was any way to use use a custom note as standard but it seems not. Do you know any other calendar that might help? I’m not really interested in synching with google/anything else.