A way to match different processes in awn's taskbar

there has always been this problem of a launcher creating another icon when launching the process, and in "Advanced Options" tap the "Matching strength" isn't really helping.
I think that a good fix for this would be, besides the existing matching algorithm, to let the user decide if a task belongs with some launcher, for example: if I click on launcher X, and it opens the program in another icon, I can drag the new icon to the original launcher, and then a text must appear saying "Would you like to groupe theses tasks?", and if I answer "yes" then AWN should remember to always regroup these tasks in the future.
I think it's a pretty easy modification to do that doesn't need big changes, but solve a real problem.