Suggestion #1: Option to lock each component

Problem description:
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- If you have an organized 3D drawing and wants to insert some more furniture on it, you can accidentally move some other elements on drawing.

- You can lock only "background" elements like walls and areas on the padlock icon.

- The problem becomes bigger when giving the drawing to a client to allow him to add more elements - he probably will move some elements you don't want.

Suggestion:
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- On furniture list, add a column to lock/unlock an element one-by-one, or clicking on header to lock/unlock all. Perhaps also a column to show/hide them.