The Fixed Size modifier takes two parameters:
Horizontal - A Boolean value that indicates whether to fix the width of the layer
Vertical - A Boolean value that indicates whether to fix the height of the layer
In the layer hierarchy, every layer proposes a size to each child layer it contains and the child layer wraps or truncates as needed. You can override this behavior by placing the Fixed Size modifier on the child.
Take, for instance, this Text layer. By default, it has wrapped its text to remain within its parent’s bounds. However, by applying the Fixed Size modifier Horizontally, the text won’t wrap to try to fit in the frame of its parent.
