Tip
The following script will allow you to press one button to harvest all items.
Note: You may copy then paste by using crtl-v while in game...
Harvest
: ; usea Collecting ; usea Fishing ; usea Foresting ; usea Gathering ; usea Mining ; usea Trapping
Trick
Place the harvest script in the ctrl-1 hotbar position.
Setup a programable mouse/trackball with one of the buttons set to F8 "Target Nearest" and another button to 1 "Attack and Harvest" is you hold ctrl down when you press the button.
This will not only allow for quick combat targeting and melee attack; but also "quick draw" on harvesting those shineys.