Tags and keywords
HumidifiedRoomblock (a higher level block with substructure):
Right at the top you see a symbol for the top-level "client" block
HumidifierSystem (which is linked to a diagram):
HumidifiedRoom block is shown specialised by a «scenario» block
HumidifiedRoom_S1, and the Internal Block Diagram (IBD) for
HumidifiedRoom is shown embedded at the bottom.
There is a known bug in MagicDraw/Cameo (still there as of v19SP3, but scheduled for fixing):