Why does a colored background hide swimlane boundaries?

Question

Even if a background block, intended to be used as gaphical element to group parts of the total, is several times klicked to "nach hinten" (behind), it still covers the swimlane boundaries.

Answer 1

A table or swimlane node is essentially an enhanced group node. Children of table/swimlane and group nodes are always rendered on top/before of their parent nodes.

In other words, the nesting structure takes precedence over the "Raise Selection"/"Lower Selection" actions.

If you want to use group nodes inside table/swimlane nodes but still see the table/swimlane node either set your group nodes' fill color properties to "No Color" or use the wire-frame-only group node style from the BPMN palette section.

Comments

Thank you for your answer.
I have tried it out, but failed.
Neither of the two recommendations work with my eYd version 3.15.0.2.

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Strange, both approaches work great for me:

Sample GraphML.

(And yes, the sample file was created in yEd 3.15.0.2.)

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My examples: