Hi Arie, thanks very much for your reply. It turns out that we don't get this automatic naming behaviour if we have "Draw Full Names" on in the View menu for Grasshopper, which I've always had on. I got that tip from the McNeel forum https://discourse.mcneel.com/t/sliders-automatically-renaming-themselves-according-to-what-theyre-wired-to/47699 I look forward to trying out your definition too. Cheers! Leo

Hi Leo! Most components in Grasshopper do this automatically, it should also work in your case. I'm using Grasshopper version 0.9.0076, you can check your version by going to Help > About... in the Grasshopper menu bar. Makes sure you have this version or higher. On a side note: If you're into coding you can also do this yourself if you create your own Python, VB.Net or C# component. See this attached example to get you started using ghPython. Double-click the component to open the edit code window. Try to fiddle around with the code and see what happens. (You need the ghPython plugin which you can download here: http://www.food4rhino.com/app/ghpython Definition: https://mega.nz/#!5ItgGSzQ!yPcHpaO2_oYr8DCAODl0IBhOy054a9HxGSsjZHQz7WA Cheers and good luck Arie