[CC] Improve widget to select and edit materials in machine setup

[EmileDvs]

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Hello all,

I am opening this issue to talk about how to improve the widget to select and edit materials in machine setup.

This idea is to have a more compact widget than we currently have to avoid taking too much vertical space, for example by doing this:

Please let me know if you have any suggestions about this modification.

Best regards, Emile

[SebGue]

Hello Emile, i like your idea. You could also move 'Material' label to the frame title. So the combobox will have additonal horizontal space. BR Sebastian