[NTG-context] Columnsets and placement of figures

Dear list, In a document with a columnsets there are many directives to place figures on certain spots (see columns-manual). I deal with a two-columns layout. Now I would need to place a figure in the first column at the lower left edge. Here the command \placefigure[bots][]{none}{\externalfigure[fake][width=\textwidth,height=3cm]} will not result in the figure at the bottom of the page, instead turns up at the top. For testing please refer to the minimal example below. I am using This is LuaTeX, Version beta-0.66.0-2011041318 (rev 4144) ConTeXt ver: 2011.05.01 12:50 MKIV fmt: 2011.5.4 int: english/englis Thanks, kind regards Willi