Subprocess symbol in ARIS Cloud basic

Hi

I'm new to ARIS Cloud (basic version) and I'm trying to map processes in BPMN Process Diagrams. When I make a sub-process i get lager "task looking symbol" (see example below) rather than an a symbol with "+" indicating a sub-process.

Once I managed to get the right sub-process symbol with a "+" (see example below) , but I can't seem to make it again. Any help would be greatly appreciated!

Best regards

Lars