Portion Marking representation to improve diagram readability

Using the data markings and classification plugin, data markings applied to blocks/packages are currently displayed as prefixes or suffixes to the block name through the "portionMarking" representation attribute. 

When multiple markings are applied, the block label becomes crowded and difficult to read on diagrams and containment browser. Legends can also not be used in case of multiple markings applied that need to be distinctly identifiable.

Is there a better way to represent multiple data markings on diagram elements that preserves marking visibility for compliance while improving readability and reducing clutter?