thanks both!
the ‘answer’ is the following:
the whiteboard for me is / should be the central start- and endpoint for forming (‘visualizing’) relevant constellations in an information-rich ‘conceptual space’ – underpinned by the databases and informationally structured (sub-)entities.
an entity in my work scenario thus is also a ‘building block’, or alternatively a kind of an ‘archive item’, part of a ‘conceptual repertoire’ as long as it exists in its database (see my reference to the other PKMs, which work on similar principles nowadays). as such, these blocks (entities) then ‘come to life’ and into relevance when I place them into a new / extended topical field of association (= whiteboard).
this is where I (mainly) work: placing items into constellations. 
– and I think this principle is true for a lot of scenarios that are mainly deailing in / with creative processes as form of production.
– in such a scenario really ‘knowing’ the relevance, finally the ‘meaning’ of an entity is this: an iterative process of continued re-use and association in different constellations and new associations. it is a getting to know potential relevancies of an item – while the multiple (re-)uses recursively enrich and in a way build the (value of) the building blocks / entities.
so, to know where an entity ‘lives’ or becomes ‘relevant’ in the many context(s) represented by my whiteboards (my base reference planes) is the process of ‘insight creation’ and ‘knowledge refinery’ I am after. 
as said, I see this as a showcase example of the ‘restoring the context’ principle highlighted as one of the examples of ‘insight creation’ and core characteristics of Fibery presented in the video reference.
… ‘only’ that in my case the whiteboard is such a possible relevant context to be ‘(re-)found’ – so it´s not ‘only an illustration’ post ante but a primary and original context of active association / work … 
what I want – given the scenario of associative / creative work – is a work and knowledge flow where the very information that something was brought on a particular whiteboard (made meaningful in an additional context) ‘trickles back’ into the overall system of insight creation.
so, in a way I want ‘feedback’ from whiteboards and treating them as a constitutive (part of the) work context.
I have many practical use cases / examples, like:
• in what brainstorm session did this entity appear?!
• in what publication / exhibition project did, say, a concept make its appearance alongside an image entity?!
• to what semantic fields / meaning domains / Idealized Cognitive Models does this entity potentially belong? what (longer term) ‘concept maps’ include these entities?
• what idea sketch made use of these entities?
• etc.
– hope I could make it clearer, resp illustrate what I am after… ?! 
