How to display multiple pickups in a group?

I want to display a bunch of pickups when player cross every 10 floors. I want to implement it manually means to say I don’t want create box collision and then spawn randomly, because it cause overlapping and right now I’m not good in box tracing.

I can create desired result in a new blueprint. Suppose placed 10 pickups (static mesh). And when I overlap them destroy and add in pickup counter. But in this way I have to create multiple overlap events for all pickups/StaticMesh.

Is there any other good way to achieve this?

Update: By the way, I have BP_Pickup. But I don’t how to use it inside another blueprint to create a group of pickups.

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