delete empty lines

[miksas]

hello

how can I delete all empty/blank lines? (lines that dont have characters visible in them, even if they contain spaces)

thanks

[Abacre]

Go to main menu - Action - Options - Batch Replace
check "Modifier S"
check "Modifier G"
check "Modifier M"

Go to Batch replace tab, check on "Use regular expressions".
Put into the grid, search for:
\r\n[ \r\n\t]*\r\n

Replace with:
\r\n

That's all I verified it works perfectly.