Hi,
I think it will be nice, and useful, to add a new placeholder (Widget) on SectionExpandable SilkUI content.
See the example:
The Widget placeholder is in the same "container" as Title, so it's important when User clicks on a button or link inside "Widget" the section must not be expanded or collapsed.
Adding to this, it will be useful to add a SectionUniqueName to SectionExpandable. This will prevent expand/collapse all the Sections inside the current page simultaneously.