While searching to create multi-row floating toolbars I read this post.
I do not use Opus 9, but the multi-row floating toolbars seems to support it.
but Opus 12 does not support multi-row floating toolbars.
I'm not against multi-row docked toolbars, and making them work again (without breaking taskbar-style single-row ones) fits into a more general project of overhauling the toolbar layout code to work better with non-docked floating toolbars.
Comments by Opus developer on May 1, 2011.
Six years later, does not it support multi-row floating toolbars.
or Don't you know how to make it?