Originally Posted by boourns
I think the ` key next to '1' does what you're asking?
Ok, I can confirm nothing in the keybindings menu does what he described, I went through all the ones that seemed even vaguely related.
The OP is basically asking for an option where the default behaviour for your character when in range of a creep or enemy hero is for him to do nothing, rather than the current behaviour which is to autoattack it. Also normally once you right click a target, your character will keep attacking and following that target until it dies or you lose vision, then afterwards your character will reaggro onto another close target. The OP would like your character not to automatically reaggro.
Also, unrelated note, you guys seriously need to have Show Health Bars, Toggle Minion Health Bars and Show Summoner Names unbound by default. Every time I play with a new player they end up turning their **** off and are confused and I have to explain to them how to revert it.