OK I'll do it.
Sorry, I badly expressed my question:
When I prepare a big book (say over one megabyte, even in ODT format), if I export it , it will be a huge html file.
Sigil can deal with that but it's has trouble. When I need to change something in the code, Sigil may hang or be pretty slow.
Calibre knows how to divide this huge file in smal several so-called manageable "index_splits" which are very handy and very easily processed with Sigil.
So, up to now, if I have a big file to process with Sigil, It seems it's better to first use calibre if only to split it in several manageable parts.
I know one OpenOffice extension which, like calibre, can split an html file in several parts (chapters with heading 2 for example) in
strict html format.
Question
Can Sigil batch import these different parts?
If not, is it planned to give it this possibility at a later stage?
and I got the google answer...
http://code.google.com/p/sigil/issues/detail?id=142