No Expand Chart button when using Singles API?

[ChrisSL]

Hi,  

When we open an entire app in Qlik Sernse, charts have an 'expand' button where it will grow to screen size.

I am embedding Qlik sheets in my own app,  using singles API, but when I do that, I lose some functionalities which, imo should work on single sheets.   

In this case, the charts no longer have the expand button.    Is there a way to have it back through an extension or other?

Thanks.