1. I gather you're using HotKeyNet. If you don't want to send a key, then you would exclude it from the hotkey list. It's covered in my HotKeyNet guide, about a third of the way down under "Section 6 - Defining Hotkeys" and the subsection Changing the Sent keys

http://genus-industri.us/wp/2011/09/...tarter-script/

2. You should be able to summon, but I can't be 100% on that. I don't think you can summon to Goblin, DK, Panda or any of those newbie phased areas, but maybe you can summon out? And I think in some cases you need more reputation to see the quests - I think my Undead had issues getting quests in the Orc newbie areas because of rep at one point. That shouldn't be too much of an issue though.

3. Yes, the mouse passing is sufficient to gather and mine if you have the patience to set it up.

http://genus-industri.us/wp/2011/11/...ipt-v2-part-5/

It is even good enough to fish on a whole team at once.

http://www.dual-boxing.com/entries/122-Khat-Fishing