[NTG-context] Presets in collectors

Hi! Is there a reason that presets don't work with collectors? Collectors are based on layers and that's what presets are made for, right? Bug or feature? \definecollector [mycollector] [width=\textwidth] \setcollector [mycollector] {\framed[width=5cm,height=2cm]{Foo}} \setcollector [mycollector] [preset=rightbottom] %% not recognized %% [corner={right, bottom}, %% works %% location={left, top}] {\framed{Bar}} \flushcollector [mycollector] \starttext\null\stoptext Marco