I believe Solidworks will section the view wherever you draw the section line, regardless of whether the part is curved or straight.
Although just a quick example hopefully this is what you are kind of after?
with angled section views you can use the below section view type
then place the section view where ever you like (to place it unaligned) so its not fixed if you hold down CTRL on the keyboard before you place it you can move it freely.
If you then wanted to you can add centrelines for construction geometry using the sketch tab.
Hopefully that can point you in the right direction
yeah that what i'm looking