number of certain visuals on a report

[Balogh1Bence]

hi! I Have a usecase where I need to know the number of a certain visual on a report page. 
For example: On the page called "Page 1", I have 10 visuals. Some of them are special visuals called "SMF". 
I need to know how much of them are these visuals. 

Edit: We are developing a custom visual and we need this information in runtime

[Lexporate]

here you can see the list of your elements on the page, and recount them

[Balogh1Bence]

Some context I forgot to mention. We are developing custom visuals and we need this information to know how much messages can we expect from the “SMF” visuals on the report page. We need to get this number in runtime.