Based on Kindle Publishing Guidelines, I don't think the Kindle supports everything that Sigil does
3.4 Guide Item Guidelines
3.4.1 Guide Item Guideline #1: Recommended Guide Items
The Kindle platform supports guide items for defining the cover, the table of contents (TOC), and the start reading location (”Go to Beginning”). Do not set the start reading location to a blank page.
Amazon does not recommend adding additional guide items to the OPF file, because they will be grayed out in the menu options and may cause customer confusion.