After you unselected specific area or volume,you should do as follows:
1.enter "Select" bar in Utility menu
2.select the particular item in the "Everything below" according to your requirments.
For example, if you want to show the result of a volume, after select it, you should do:
Utility...
The results of the eigen frequency of a thin plate are different between two meshing methods,including "hex sweep" and "tre free". which meshing method is more accurate?