... is not a function

I’m testing the webix tool and ist looks great from the beginning. But how deeper i get in the coding the more problems i have.
I use a kanban view and i want to manipulate items. So I get the kanban objekt
var mykanban= $$(‘mykanban’); If I send it to the console.log I get a long list of the properties. But if I want to use a function I get an error. E.g.
$$(‘mykanban’).getItem(‘myitem’) raises “getItem is not a function”. Same if I use add(). => “add is not a function”
So I’m slowly depressed.
Any hint?
Matthias

Sorry guys,
I found my mistake. I used the wrong name for the kanban view.

Greetings from germany