I see the point. Hard to find a good balance. As you said, maybe the best is to remove access to the roassal shape from an element.

Alexandre
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Alexandre Bergel  http://www.bergel.eu
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On Jul 3, 2014, at 4:53 AM, Guillaume Larcheveque <guillaume.larcheveque@gmail.com> wrote:

It creates a kind of implicit group that is not really easy to understand and to maintain. If you want to change the color or any other property of a shape on lots of elements, a better way would be to use a group and then ask to this group to change and update all its elements. It's terribly confusing to change a single element and to have a modification on every elements that were created in the same way. In addition those elements will not be updated soon so you will not see that they changed until you update them.