Roblox Script Change the position of a Part

If you have a Part in the workspace with the name MyPart, changing its position with script is all about writing:

workspace.MyPart.Position = Vector3.new(50,0,0)

If you want to move the Part by some value, you need to make an operation:

local pos = workspace.MyPart.Position
workspace.MyPart.Position = pos + Vector3.new(-30,0,0)

Let's play a bit more, consider that the default Baseplate is a Part, thus, change its initial position at runtime:

workspace.Baseplace.Position = Vector3.new(0,-50,0)