Hello @user2776 
Many thanks for sharing your thoughts with us!
Unfortunately, at the moment, there is no option to set exception for the repetitions. I am really sorry about it 
You can vote for this feature to keep on top of all the updates.
As for the custom feature issue, I’ve checked your widget and it seems to be working fine now.
If the issue still persists on your side, could you please send me a screenshot or a video screencast of the issue, it would be tremendously helpful!