We go forward to the clothing screen and load our Saturday Night Dress.

No existing morphs are shown in the list ... as it should be cause we also have none seenin Poser.

If you press the details button you get some informations about the clothing and again it's shown that there are no morphs in that.

If a cloth is already having morphs build in this is shown here in the list. We come back to that later.

With the solid or exclude buttons you can prevent material groups from being morphed or deformed by morph.
For example if you have some buttons or buckles at a shirt they may look deformed if they are morphed with the rest. So you can define their material group as solid and they will stay intact in shape and only morphed in total using their average middle as morphing point. Though this is a mighty function but due to that average value it's depending on the surrounding if the effect is useful. For example a big buckle than will not be deformed but may loose the correct contact with it's belt.
So for sure this is a point for experimental work depending on the needed results.