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Pharo: (Multi) Select in World by dragging

Did you ever end up with a world overcrowded with Morphs that you no longer need?  Frequently, especially when I’m prototyping, I end up with something like this:

And I wish I could delete them all at once, so I went to implement “drag to select”, just like the standard behavior in a Mac or Windows desktop.  I was finished in under a minute because I’m an amazing programmer it already exists!  To turn it on, evaluate:

WorldState easySelectingWorld: true.

To make things easier and more obvious, I’ve added a setting for this and submitted it to the Pharo inbox.

Here’s a short screencast that shows how to start digging into Pharo, and the Settings Browser:

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