Replace text in certain columns

[ps1290]

I have a text file that is 750 characters long. I need to replace text
starting in column 364 for 4 characters. I have to do this on several
occurance of the data. How do I do this?
Thanks
Paul

[ben_josephs]

The following assumes you are using POSIX regular expression syntax:

Configuration | Preferences | Editor
[x] Use POSIX regular expression syntax

Using Search | Replace:

Find what: (^.{363}).{4}
Replace with: \1****

[x] Regular expression

where **** is the replacement for the 4 characters.

I have a text file that is 750 characters long. I need to replace text
starting in column 364 for 4 characters. I have to do this on several
occurance of the data. How do I do this?

[Jonathan_Taylor]

Alternatively, block select the area of the file in question.

(This can be done using by selecting text while block select mode is on (Configure->Block Select mode) or pressing the Alt key when selecting).

If you want to change the four characters in EVERY line, then right-click->Fill Block will do the trick.....ensure "Fill Mode: replace" is selected.

Alternatively use Search->Replace, and ensure "Scope: selected text" is selected.