Dimensions Tip for the AutoCAD Plant 3D Spec Editor

So for a while I’ve been trying to figure how to know what the secret values mean in the spec editor.  Sometime you’ll see 0, –1 or –2 and I had trouble figuring out when those values could be used.

I’ve stumbled over a neat trick.  However your mouse over a dimension shows you available values.

 

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We submitted a request to have a ? button placed to pop up the tooltip so that the extra information is easier to get to.