Bookmark files on the Application Palette?

Thank you for the application Palette. It looks great.

Is it possible to drag files to the palette just to keep them on the Palette (just like bookmarking)?

(or, a feature request)?

that would be very useful to keep a list of files associated with a specific project (for writing, for example).

(I know an application called Workspaces that does a similar task; but, was wondering)

No, but you can create a macro palette that contains macros that open documents. And it would be possible to write a macro that could accept a dragged file and create a new macro in the palette that opened that file.