Similar to 'D-Transform YYYYMMDD to DD.MM.YYYY', if we have a date in YYYYMMDD format as shown in the image below, then it can be transformed to DD.MM.YYYY format.
In Mapper tab, select the 'J-Transform YYYYMMDD to DD.MM.YYYY' DF for the corresponding field.
Following image represents how Process Runner adapts the transformation on-the-go