You can write those components with dissipated power defined into the master library(Menu Libary->Work Library, move components in the work library into the master library) and update the current work libary from the master library (Menu Libary->Work Library, Updating from Master...) next time.  Another way is that you may create a CSV power file and import it. There is no way to recall environment setting.

Yanfeng

If a component's dissipation varies on different cases,  you have to use power scaling to adjust it. Power dissipation file is simple and an easy way to your requirement, the format  is like this:

COMPONENT

your_part_number1 dissipatedpowervalue1

you_part_number2 dissipatedpowervalue2

If you have components with 4-5w dissipation,   I strongly suggest use Flo.pcb instead of Hyperlynx thermal.

Yanfeng