ROLLOVER
Roll value between a positive/negative range when the value goes beyond that range.
The image shows the result of ROLLOVER(VALUE;10).
In the example, the value goes from -25 to +25 in grey.
The filter result is between -10 and 10. When the value goes beyond 10 or -10, it comes back in the other direction.
To use ROLLOVER in Mover, do:
ROLLOVER(parameter1;parameter2)
parameter1 is the value we want to filter.
parameter2 is the value where we rollover.