[NTG-context] Omit part of a caption in a list

Dear all, is the following possible? List of figures 1.1 Figure caption . . . . . . 2 <page break> *imagine figure here Figure 1.1: Figure caption is a lot longer than it appears in the list of figures. I'd like to shorten the captions in the list of figures that I produce using \placelist[figure] (preferably cut off clean, no ellipsis or the like). I know about \nomarking{} but it seems to apply only to chapter, section etc. titles. Cheers Christian