How to fix/lock class diagrams ?

[pstein]

It occurs occasionally that I drag accidentially boxes of classes in a class diagram with the mouse.

Is there a way to fix/lock the diagrams anyhow?

However single boxes should be still selectable in order to e.g. manage (add/rename) some attributes.

how can I do this?

Peter

[Eve]

If you right click on the diagram background and select 'Lock Diagram' you won't be able to move anything on the diagram but can still create attributes etc.

If you have boundaries (or similar) to group classes you could also make these non-selectable (via the context menu) to make the diagram easier to work with.