SysMLv1: MagicDraw/Cameo: GOTCHA: If you DRAG a Signal onto a Block symbol it will create a Reception. One way to create a Property typed by a Signal is to use a composite Association. Or just create an untyped Property then type it by the Signal.
fUML-1.4: 7.6.2.1: Reception: [1] fuml_reception_no_method: A reception must not have an associated method.self.method->isEmpty() Source Action Language for Foundational UML 1.1
MagicDraw/Cameo: You can drag a Class symbol onto a Class symbol (in a Class Diagram) or a Block symbol or ValueType symbol onto or Block symbol (in a Block Definition Diagram) to create a new part property or value property
REFERENCE CARD: Property cheat-sheet for Block Gallery Tutorial TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo Section 08:01: The building Blocks of SysML Slide kind SysML Block Definition Diagram (BDD)
Class compartments Gallery Tutorial TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo Section 01:02: UML 101 for model-based systems engineering with SysML Slide kind UML Class Diagram
REFERENCE CARD: Types of Block Properties and Block compartments Gallery Tutorial TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo Section 08:01: The building Blocks of SysML Slide kind SysML Block Definition Diagram (BDD)
A compartment with the label “receptions” may appear as part of a block definition to show signal receptions. The “«signal»” keyword is optional in this compartment. Source OMG Systems Modeling Language (SysML) 1.6
MagicDraw/Cameo v19SP3: uses the Block compartment name 'signal receptions' instead of just 'receptions'. [CLAIMED FIXED in v2021x]
ExampleBlock in a Block Definition Diagram (BDD) Gallery Tutorial TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo Section 08:01: The building Blocks of SysML Slide kind SysML Block Definition Diagram (BDD)
A Class has four mandatory compartments: attributes, operations, receptions ... and internal structure ... A Class may also have optional compartments as described for Classifiers in general Source Unified Modeling Language 2.5.1