MagicDraw/Cameo: On EVERY project of ANY kind set the Environment Perspective to Full-Featured and check the Expert box, even if you are a "novice".
Cameo/MagicDraw: The Classifier specification setting 'isAbstract' is (for reasons that beggar belief or engineering reason) not by default visible in the Element specification dialog. Enable expertise level 'All' (and for always everwhere).
MagicDraw/Cameo: Set EVERY element properties and symbol properties filter to 'All' (yes, not just 'Expert', to 'All', even if you are a "novice" on your first project) in EVERY dialog and every project option setting. Use the dialog search filters!
MagicDraw/Cameo: You can control how or whether applied Sterotypes are displayed on most Element symbols using the 'Show Stereotypes' display option (and in some cases this affects how the entire symbol is displayed).
MagicDraw/Cameo: You can assign values to 'tagged values' of Stereotypes via the Tags section in the specification dialog. Make sure you have one of the 'On Shape' or 'In Compartment' Show Tagged Values display options enabled.
MagicDraw/Cameo: You and can choose which Features, element properties, or tagged values of Stereotypes to show on most symbol compartment types
Just because you can't see a Feature or some other aspect of a UML or SysML Element in a tool on a symbol does NOT mean it does not exist in the underlying model (repository)!
Webel: Recommend maintain a basic black-and-white style file for starting new projects. Webel course attendees have access to a basic Webel.stl file (or clone and tune the 'OMG SysML style').
Webel: First recommended style and project option steps for every UML and SysML project in MagicDraw/Cameo.