hard/soft edges set normal angle how can I set se normal angle of an edge, to make it soft, hard or something inbetween?? (without beveling, withou more geometry)

I do it in maya selecting the edge ...menu/mesh display/set normal angle...

or just selecting ...menu/mesh display/hard edge
There are two ways of beveling in Blender.

Method One:
Go into edit mode and hit 'shift b' and drag the cursor until you have the desired amount. This will add more geometry though.

Method two:Go to the modifier tab and click:
 add modifier > generate > bevel 
This will not add more geometry unless if you select 'apply'.