well i think the title says it all..
ALT+A will do the same thing as ADD. i know lot of people knows that but i bet this could be useful to someone at least
.. so u just press an emo and then alt+a and it will be added to the choosen panel..then u just need to move the cursor a little to the side and click on it and ALT+a.. ive added alot of them in a few seconds