Question about fullscreen across all monitors in xfwm4

[Stephan Haller]

Hi,

I'm too stupid to get it from source code and I think the authors of
xfwm4 can answer my silly question ;)

Does xfwm4 support a fullscreen window across all connected monitors?

If not, what is the best way when considering drag'n'drop between each
window created for each monitor connected and set to fullscreen?

Thanks in advance,
Stephan Haller