Major Description
Currently, there are various already existing pre-processing steps as part of the adapter pre-processing pipeline when a user creates a new adapter (e.g. add timestamp, rename fields etc).
What is missing is a preprocessing step to apply correction value measures such as multiply a scale factor, add or substract a numeric value, e.g.
event_field_value * 1.5
event_field_value - 10.0
event_field_value + 2