Initializing tooltips on a container and filter is great, but we need a way to individualize some configuration options, especially positions.

Option 1: position = "auto"
if the target is close to the top, position is automatically set to bottom
if the target is close to the bottom, position is automatically set to top
if the target is close to the left, position is automatically set to right
if the target is close to the right, position is automatically set to left

Option2: position = function(tooltip, target) {}

This might be applicable to other properties.