For a multi-line Find/Replace you can use "^p" as the CR/LF (line terminator) as it is translated to a hard return.
You can also use the contents of the clipboard or selected text in a search or replace string with "^c" and "^s" respectively.
UltraEdit and UEStudio support the following variables in the Find/Replace dialogs:
^^ searches for a "^" character
^s searches for selected (highlighted) text when a macro is running
^c searches for the contents of the clipboard when a macro is running
^b matches a page break
^p matches a newline (CR/LF) (paragraph) (DOS Files)
^r matches a newline (CR Only) (paragraph) (MAC Files)
^n matches a newline (LF Only) (paragraph) (UNIX Files)
^t matches a tab character