How do I use DataStore between Universes/Games?

This is my script that's inside. I have a few questions about this.

1st question: On line 6 will that work??

2nd question: Where would I put data store functions? How would I transfer/ create data store? I tried the wiki but it just confused me beyond anything....

local PlaceID = script.Parent.ID

function onTouched(hit)
	character = hit.Parent
        if character then
            game:GetService("TeleportService"):Teleport(PlaceID, character)
        end
end
 
script.Parent.Touched:connect(onTouched)

READ this I personally find it rather difficult to understand, as the examples show us what we don't want to use it for. Later it should be updated though.