It works to some extent, but you have to be really careful. The panels will take an amount of heat to soften, and then just a little more to melt and deform. Visually you can not see the point where the plastic becomes a liquid. If you get it too hot, when you touch it, it will deform. The difference in temperature is very small. I have not had great success with this method. You can reshape the plastic, but the discoloration is hard to eliminate. You also have to be careful that you do not melt the surrounding plastic while working on the damaged area.
I have replaced damaged metal parts that have heat melted tabs holding them in place. I heated the tabs, reformed them, and removed the part. I then replaced the metal part, and reheated the tab area to hold the part. Again you have a fine line between softening, and melting the part. Practice on a part that is junk, until you can judge the amount of heat to apply. The metal part will hold the heat as well, so be careful.