Open/close subtask in Modeler

Hello everyone,

Can I open/close Activities in Camunda Modeler as a SubTask? I mean, first I want to see a high-level process, but I do not want to see the details. But when I -for example- click on one of the Activities, I open a detailes subprocess in a different window or something like that.

In the attached picture I do not want to see the “Check data procces”, only when I open it. Can I open or close it somehow?

Is it possible? Thank you for your help in advance!