Run pdflatex multiple times?

[Tim Eisenhardt]

Hello all,

I'm having issues with misaligned float elements, TOC items, captions 
and such (tufte-book class). Restarting lyx and compiling a fresh pdf 
document (whicht takes longer than otherwise) solves these problems most 
of the time.

Can I tell lyx to run pdflatex, say, three times and/or delete all 
temporary files before compiling?

Thanks for your help,

Tim