[Direct Edition:009]: Continuation label

[planger]

It SHALL be possible to edit the label of a continuation directly on the diagram.

The editor SHALL provide content assistance for the possible available continuations:

• If the continuation is defined at the start of the operand, it should match against a continuation defined at the end of an operand.
• If the continuation is defined at the end of the operand, it should match against a continuation defined at the start of an operand. The operand to be consider should be any operand included in the current interaction and the closure of the refersTo of the interaction uses.