Changing brush thickness AFTER you've drawn

Hey gang,

Is there a way to change BRUSH thickness after you have drawn something?
I’m collaborating with my partner and we used different sizes between scenes and it looks odd -_-
((Harmony Advanced))

You can’t change the brush size after you have drawn.
You can only do this with pencil lines.

What you can perhaps do is select and from the Drawing
menu, Convert-Brush Strokes to Pencil Lines
and then select the pencil lines to modify their width.

Ideally when collaborating you should use the same pencil
and bush settings and also share any textures you are using.
(I know this comment is a little late to help you but perhaps
it will benefit others).