How to display an element overtop of an Ion-Modal?

I have an Ion-Fab which opens an Ion-Modal, however for my use case I would like to be able to display the Ion-Fab overtop of the Ion-Modal, even when the modal is open.

I have tried messing around with the position & z-index attributes of the Ion-Fab & Ion-Modal but I can’t seem to find a way to achieve this styling.

Can anyone recommend a solution?

Bumping this - any ideas people?