Move an actor along another actor's surface

Development Programming & Scripting
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Hello, in a Blueprint, how do I move a mouse-draggable actor along another actor’s surface? An example would be player drags mouse to move a spider on the visible surface of a dog (or any irregular shaped object, not something simple like a wall). Is there a blueprint node like “Constrain movement to other actor” or anything?

If not, I’ve seen other forum posts about using line traces, is there a technique like that?

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yes likely just a line trace on tick, you can get the hit location and the normal to set the actors transform.

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