some MORE wishes

[carmenchu]

To begin with, I LOVE Sigil. Great to:

• Improve downloaded freebies
• Make Books out of OCR output (with some previous steps).

The output can be fine-tuned to a hair-breath, and the RegExp "search and replace" tool is a CANNON - new to me.

Now, the features I miss - hope none is a "pink bidet":

1. A "busy" warning, like the one in Calibre: suspect I spoiled some work by keeping on editing while Sigil was still digesting last changes.
2. Book-Browser batch file-renaming: anybody who has ever edited an ePub from Gutemberg MUST wish that! Feature (1) links here: updating anchors would require some work...
3. A new Edit button with the "smart Case options" for selected text: to lowercase/to UPPERCASE/Capitalize/Invert.
   
   This last is a feature I miss so much in any text editor, that I have concocted an AutoIt .exe to have it always handy: never left SHIFT CAPS blocked while editing...?
   
   By the way: which are those functions for RegExp, if somebody knows straightaway?

Thank you very much!