IBM QRadar

QRadar App Exchange provides number of fancy looking extensions, some IBM branded. 

Extensions have nice looking 'Pulse Dashboards', however they do not contain relevant .json file that could be used to add dashboard as presented on App Exchange. 

How it's meant to work? Anything I'm missing here? Any repo of those dashboards presented on App Exchange? 

App Exchange link to one of extensions: 
IBM Security App Exchange - IBM QRadar Custom Properties for Linux

Marketing material - about Pulse and functionality

Fantastic Dashboard Capabilities - QRadar Pulse 2.4

One of dashboards was provided over discussion forum... but not directly with 'extension'? 

Pulse dashboard for GDPR | IBM QRadar