Thanks for your feedback, much appreciated.
The current model is that every record (i.e. that entire block) can have multiple entries that are added up regardless of order. So the resulting total is the just the sum of the individual time values. (Here: `8h30m + (-45m) = 7h45m`)
Regarding whitespace: are you referring to some whitespace specifically (like the indentation) or to whitespace in general? Do you have a concrete idea in mind how you would change the syntax? Curious on your thoughts!