Hello,
Swisslog for Windows doesn't have a power output field associated to every QSO. You associate every QSO to a My QTH and in every My QTH you associate a Working conditions (radio, antenna, power output, etc used in this My QTH) and an Event (contest, dxpedition, award, etc).
Please read this question and my reply where you will see clearly all this:
https://www.swisslogforwindows.com/forum...hp?tid=426
The use of My QTH / Working conditions / Event offer a very flexible and complete way to classify all your QSOs perfectly because you can have as many different combinations as you wish!
Best 73
