I have several .*qbk files that I build in separated folders, each one with is own index.html. However, I couldn't make that one of them to be the main root so when I click in home button it goes to the main root, independently from which file I am. I could only manage to get up and home button to go to file's own index. There's any solution for this or I must build everything in the same file?
I think yes you need to build as a single document (you can still have separate quickbook files for easier maintenance - but you'll need a master file that includes the others). You could make each part either a separate section, or a separate chapter depending how you want to organize things. But basically if you want one master index, then you need to build as a single "book". HTH, John.