visual fragmentation when using external classes

[javadch]

Assume that I am using Observation and Measurement classes from the OBOE-Core ontology inside my ontology. There is a measurementFor object property between these two classes in OBOE that I rely on. However, when I visualize my ontology, this property is not shown and hence that piece of information is hidden. This causes visual and mental fragmentation and hinders the actual knowledge represented in my ontology.