Currently, when you work with entries and clock things in/out, you can press:
C-c C-x C-d to display totals of entries next to them.
This uses the function org-clock-display: source code here
It would be nice to be able to see estimates as well, like:
* my task ... 2:00 / 3:00
Does anyone have any ideas on whether it's possible to add something like an advice function or another function that does this already?