Check if photo dome is created

Is there a way to check if a photo dome is already created or not? Because I will be using a button later to create a photo dome and instead of using boolean variable, I would like to know if there is a way in Babylon to check if a var dome is already created.

https://playground.babylonjs.com/#14KRGG#481

You can simply check if the “testdome” mesh exists :slight_smile: