Modeler: 13/EditExpression
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Edit Expression
In this window you are able to adjust the soft semantics by simply character editing. The mouse can be used to drag the location of the hard semantics (structure) to a proper place in the text.
When this expression is from a different namespace, the unlock button is enabled to break the reference link. Breaking the link is required before editing can continue. There's no option to re-enable the link.