A very small suggestion here... It would be nice if there was any default way to extend the caching to infinity. I realize there is a maximum, but preferably there would be a toggle to allow caching to last forever, until it's cleared.
On that note, clearing/busting would perhaps also be something that could be handled through a separate field, labeled "Clear if".
Just some random thoughts and I understand if this wouldn't be something of priority.
I am referring to the following screen:
Thanks!