When setting (a lot) bookmarks in files it is sometimes not pleasant to need to cycle through all bookmarks by using (CTRL+)SHIFT+F2.
It could be usefull to have a pane (like the Workspace) that lists all bookmarks set, for each open file, maybe with a short version of the code on that line.
That could be very pleasing when navigating through the various bookmarks.
It could look something like:
@ 79: int main(int argc, char *argv)
@ 120: for (i = 0; i < max; i++)
@ 103: if ((x <= maxx) && (y <= maxy) && ...