I would like to have a detail area where the scale is larger so the detail is easier to see. This would be a small selected area of main drawing where I would make the part visually larger. I don't this is possible. It's just one scale factor for the whole drawing. Right?
Select all entities you wish to enlarge,
"copy with reference"
"paste" where you want
select copied section and use "modify, scale"
that should produce the result you want.