Is it possible to select two atoms, draw a dotted line between them, but don't display the distance?

Not directly. However, this capability is available through the scripting interface. For instance, suppose the two atoms to connect are "resid 45 and name CA" and "resid 99 and name N".

Then the following script will do what you want. More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.