Search and Replace 1.35 has just been released with quite a few small improvements as well as a few bug fixes:

• If only one item selected, you are now prompted to add all other visible items
• New quick commands to copy the filename to the title – with and without file extensions – and to run parse and audit directly from the main dialog box
• Parse and Audit now adds columns in the Library filter panel listing all the values in the “copy from” and “copy to” fields – handy when you’re checking what’s in those fields
• The keyword counter now goes much higher
• Improved error reporting through log file
• Corrected some translation errors
• Search Replace Transfer dialog box opens at last-used tab
• Fixed Lightroom 2 startup bug

This version has also been tested on Lightroom 4 – no charge for upgrading.

Here you can see that I've got 10 photos with the current Copy To field - which happens to be the title - set to Blea Tarn. 2 to Ashness Bridge. This is handy for consistency of data entry.

Those who like to copy the filename into the title field will find it much quicker - you can choose to copy with or without the file extension