Create a part and you’ll see that CanQuery (BasePart | Roblox Creator Documentation) will not be available.
As stated above, CanQuery is a property of BasePart, so it should be available to Parts.
CanQuery is not available to Parts:
But it is available to MeshParts:
The property is available through script, so the problem is only in the Studio’s interface:
workspace.Part.CanQuery = false
Issue Area: Studio
Issue Type: Other