Float Placement in Windows version of LYX

[neon none]

Hello,

I am trying to control the float placement in Windows version of Lyx. While
the LyxWiki prescribes going to Layout menu and use Float placement dialog
to do so, I see no such 'Layout' menu in the version I am using (LyxWindows
1.5.4) [the official windows installation].  So, what should I do to control
float placement in Lyx windows version?

Thanks,
Neon