Item Behaviours 'change this one item only' should work

[InstinctBrett]

clicking the cog on an item in the sidebar AND cog-tool clicking an instance on the stage should BOTH do this:

• Open the Item Behaviour window which will edit properties for all instances

Checking the 'change this one item only' should:

• change the confirm button to say "make new copy of item"

Clicking the button when the check box is checked should:

• duplicate the item in the sidebar and give it the new behaviours, leaving the old item untouched
• if the window was invoked by cog-clicking an instance on the stage: \ replace that instance with an instance of the newly duplicated item.

[marsh0lion]

Checkbox now works for changing individual items properties

[marsh0lion]

More thought is required for when it comes to variables