I've put up a patch to allow scrolling part of a line. The current behavior of %s in the wps is to scroll the whole line regardless of where the %s is. With this patch, only text after (to the right) of %s will be scrolled.
http://www.rockbox.org/tracker/task/5907I've attached a screenshot using this wps:
Artist: %s%?ia<%ia|%?d2<%d2|(root)>>
Album: %s%?id<%id|%?d1<%d1|(root)>>
Title: %s%?it<%it|%fn>
%pb
%al%pc%ac%pp/%pe%ar%pt
Next: %s%?It<%It|title not available>
Testing & comments welcomed.
[attachment deleted by admin, too old]