This post has many Notepad find replace examples and. If so then use the Edit Column Editor function. Like other such windows it can be moved or even be a free-floating window.
To show line numbers in Notepad put a checkmark in the checkbox labeled Display line number as indicated by the blue arrowIf you wish to hide line numbers in Notepad remove the checkmark.
Hit CtrlH to replace the regular expression 0-9 with 1. Hit AltC to invoke the Column Editor to add sequence numbers. First is a line describing what was searched for how many total matches known as hits occurred this is also shown in. In System Properties make LNK files executable.