Suggestion: New Array Behavior

I would suggest a new default behavior for Array in the properties inspector, you would use one like the manager layers.

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I think this second image easier to work with arrays, it's easier to reorder items, and if I need to add new or delete, I will not need, edit the number of items.

The designers of my project loved it, they said it's much easier to work that way, than to be incremented / decrementing numbers to add / remove items.

 

There'd need to be a way to enter a number for arrays so you don't need to click repeatedly if you have an array of more than a few items.

 

Could then be a PropertyDrawer, Unity already provides some, this could offer for Arrays, something like [ArrayCompact]

Example of other properties using the Properties Drawers of Unity 4:

Property Drawers in Unity 4
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If Unity provides this Property Drawer, would be optional, and each would implement this kind of behavior in the Array to your liking.