For example, http://www.plantuml.com/plantuml/uml/SyfFKj2rKt3CoKnELR1Io4ZDoSa70000
How to remove the bottom bob and alice?
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@startumlhide footboxBob -> Alice : hello@endumlhttp://www.plantuml.com/plantuml/png/SoWkIImgAStDuSh8J4bLIClFBqdAh-1ooazIqBLJSCp9J4vLi5B8ICt9oUToICrB0Qe40000
@startumlhide footboxBob -> Alice : hello@enduml
http://www.plantuml.com/plantuml/png/SoWkIImgAStDuSh8J4bLIClFBqdAh-1ooazIqBLJSCp9J4vLi5B8ICt9oUToICrB0Qe40000
Sorry, I don't know. Only hide footbox is described in the documentation: https://plantuml.com/en/sequence-diagram