The following example is from MD SysML Plugin and uses a Block with multiple Internal Block Diagrams (IBDs), however the same principle works for Composite Structure Diagrams in MD SysML.
The "active" hyperlink is the one that is used when you click on a symbol, however you can have more than one hyperlink.
Structured Classes (& Blocks) and the "focus" diagram in MagicDraw UML (& MD SysML)
By default a structured block (see the diagram menubar) in MD SysML gets a "focus" IBD of the same name and the name of it is synched to the block name: it is also set by default as the active hyperlink. (On MD UML a structured class gets a "focus" Composite Structure Diagram.) So when you first create a structured block just clicking on it will open up its "focus" IBD.
Assigning multiple diagram hyperlink targets
You can also assign and get to any of the other diagrams easily, too. Simple drag any number of diagram icons onto your block ! (The last one dragged will become active, so if you want your original focus diagram as active again, drag it on again.)
This has already been done for the example below. The aim is to have separate IBDs dedicated to electrical, mechanical, and optical systems, each one representing a different view of parts of the same block. (When doing this it is a good idea to use a lower case diagram name, so that they are not named like "focus" diagrams that correspond to Blocks.)
Now follow the trail to the next diagram to see how to choose to GoTo a given target diagram.
