AR Handheld Template help

Hi Guys, i am relatively new Unreal user. I have been experimenting with the AR handheld template and i wanted to know if there was any way to edit the blueprint so that the replaceable spawn actor is spawned only once in the scene instead of it being spawned with every touch. Any help would be greatly appreciated. Thank you.

This is basic blueprint scripting. It is not specific to AR or any template.
So the question would be how to execute blueprint code only once.

You can use “Do Once”. Put it in front of the “SpawnActorOfClass”
Video “WTF Is? The Do Once Node”: WTF Is? The Do Once Node - YouTube

Highly recommend you learn some beginner concepts first by reading a book, the ue4 documentation or video tutorials.
If you take a few seconds you can find a lot info for free.

Youtube Tutorial series Blueprint Essentials: Blueprint Essentials: Variables Overview | 01 | v4.2 Tutorial Series | Unreal Engine - YouTube

Overview of all Beginner tutorials by Unreal: