Countdown to Events / Exams addon [Official Thread]

Hi @sam

I’ve been trying to append the settings button to the bottom of the reviewer, but had no success.
This is what I have in mind:

The main reason for this customization is that, while reviewing my cards, I often have ideas about things that I have to study more, or find more information from other sources, or make cross-references between cards, etc., so it’d be great if I had the option to easily create reminders while reviewing my cards.
As I said before, I’ve been trying to do it myself, however, as my Python skills are very introductory, I wasn’t able to succeed.
So, could you, please, give directions on how I should modify the source code of the add-on so it displays the settings button both on the deckbrowser and on the reviewer?