Attachments:
PolyBevel.jpg (270.4 KB)

You could add a pscale attribute to some of the points to control scaling.

H16.5.268 - bevel_scale.rar

Or if you really want to use the old polyBevel SOP, do the ff:

1. Go to Edit > Preferences > Shelves and TAB Menu
   
2. Pick the Show All Operation radio button
   
3. Now when you hit TAB to create the polyBevel node, you'll see 2 operators named polyBevel. One of those is the old version.
   

Attachments:
bevel_scale.gif (89.0 KB)
bevel_scale.rar (9.9 KB)
show_all_ops.png (24.4 KB)

@galagast
Wow - so detailed answer and gifs! Gifs are the nice thing!
I thought I'd walked through the all preferences, you're way more attentive Thanks!
You gave me a puzzle with “add a pscale attribute to some of the points”, you think too good about me, cause I'm sure the way I've found to do the same is completely inefficient. On your gif it looks so as if you added parameter somehow above the viewport O_O Several places said - to use AttrWrangle or PointWrangle, I couldn't understand how, seems there VEX is needed, bad I am.
I selected inside points > grouped them. Then added AttrVOP pointvop, and followed found example did what is on the attached. It added ramp to inside points, but it's strangly to use - to change scaling I go to pointvop instead of Bevel himself O_o
Thank you!

Attachments:
vop pscale.jpg (105.7 KB)
nodes for pscale.jpg (203.7 KB)