Hi @PipManifold,
Interesting question 😀. I doubt there is any out of the box way to achieve this using size property on the button control. However, you could still be able to achieve a similar thing with a combination of a transparent button and an htmltext control.
Basically, you can create a simple group of Button control and HTMLText control, ensuring button stays on top.

Next, you will have to make the button Text as blank and turn this button to transparent by changing the ColorFill, HoverFill, PressedFill, DisabledFill, etc properties, depending upon what level of detail you want to get into.

And finally, all you have to do is write nice little HTML to display the text the way you want it.

Oh and finally, you would also like to move both these controls together so ensure the X, Y, Width, Height property of HTMLText control is dependent on button control.
