Map editor : little problem

[Austerlitz44]

Hello

At first many congratulations to the team of Winspww2 for their great work.My problem is in map editor. When i want to convert the streams into wide rivers with [ O ] and i try to regulate how wide i want to make it,in taping shift + the wished number, i obtain always the same width for all numbers from 0 to 9 . Probably i make a mistake . Someone can tell me what to do . Many thanks in advance.

excuse me for my very bad english