Use the following tips for editing text in the PL/I Editor:
The editor displays a horizontal ruler showing left and right margins. The current cursor position in the file is highlighted in the ruler.
You can control several aspects of the appearance of files in the editor by using the Editor Presentation toolbar buttons:
Toggle Block Selection
Mode enables you to select a block of text. Enabling block
selection changes the editor font to a fixed-width font.
Show Whitespace Characters displays
a small dot for white-space characters and a paragraph mark for end-of-line
markers.