ReverseSign
Only valid, when Type is "RemainNextFixed" or "GapOverlap".

For "RemainNextFixed":
Normally, the remaining time until a future fixed-start element is calculated as a positive time interval. Only if the next fixed-start element is in the past (a situation, which shouldn't happen in most situations), is the value prefixed with a "-" sign.
With ReverseSign=1, this behavior can be reversed. I.e., time intervals to upcoming fixed-start elements are calculated as negative values.

For "GapOverlap":
Normally, gaps have positive sign, and overlaps negative sign. With ReverseSign=1, this can be reversed.
Possible values: 0, 1
Default value: 0