How to include index.kit in HTML file?

Question

HTML

You can attach another html file to the index.kit file. When it (html) is updated, in fact, the kit-file should be updated automatically, but this does not work, you have to update everything manually. I use prepros 7 version. The index.kit file is included using the import tag. How can I make sure that when saving an HTML file, the KIT file is automatically changed and saved? Please help!!!