Rationale:
There begins to be quite many entities with the same label, e.g. Petrus.

In Concepts and Actions tooltip, there is a lot of information which allows to choose the right one: detail field more often filled in, plus Relations (SCL etc.). Slightly better in L (SOE sometimes filled in), but not enough ways to choose the correct one in PLOGESTRB tooltip. Many, however, have a Reference to an R:

Feature:

1. Evaluate whether the PLOGESTRB entity has a Reference, and if it does, display the first 2 (or 1?) references incl. reference part in the tooltip. (I think textually, i.e. not as entity tags.)
2. Semi-home entities: the "house" icon is very helpful, but only relates to entities used in this subT. Introduce a "semi-home" icon which will signal entities which are not used in this exact subT, but in any other subT of the mother territory (i.e. one level down from root T).

For coherence, consider this for all entities, not just PLOGESTRB - probably yes. The semi-home icon certainly for all, and probably even the first point.

(Inspired by feedback from Katia.)