How to add a spacer to a aui toolbar

[tester0077]

In my app, the layout has a toolbar across the top with several tools in each section.
What I am trying find out is how to add an expandable spacer tool?? to have the toolbar sections to the right of it pushed towards the right edge of the frame.

Is there a way, and how would I go about it?

[sodevel]

There is an API for this https://docs.wxwidgets.org/latest/classwx_aui_tool_bar.html#a5dd4257ca5a1cba0f238228126b4337f but his is not modelled in wxFB, so currently you have to do this from user code.