Activate and deactivate ARKit (including camera plain and updating functionalitys)

Hello there!

Ive a question about the arkit 2.0 plugin. Basically i made a measuring tool which works pretty well. But in this app i dont have the functionality of the arkit to be active all the time. Only if the user needs to measure a distance.

My question: Is there an simple option to activate/deactivate the arkit functionality? Currently iam activating the GameObjects the scripts running on (Even on the MainCamera) - but this cant be the solution.

Has somebody a hint how i could manage that? I also dont want to see the camera plane the whole time in the background. Only if the Measuring tool is in usage.

Iam happy about every suggestion.

Thank you - best regards

Thomas