Answers

[solid wharf]

Anwser here pls

[delicate mural]

Elaborate?

I'm not quite sure what you want

It's not greatly described

Perhaps rephrase it?

[brazen mist]

same why you do any other object reference, make a field in the inspector for it, and click and drag the reference in

[delicate mural]

Probably that though yeah

[solid wharf]

so i create a gamefild consisting out of Prefabs(tiles)

[delicate mural]

If you want specifically a transform you could do

[SerializeField] private Transform transform

[brazen mist]

though give it a better name, that does not shadow the self transform

[solid wharf]

and i have a button that when pressed is supposed to highlite the field my mouse hovers over

[delicate mural]

It was just an example ofc

[solid wharf]

so i guess the best way to discribe is as in building simulations,
where u get this preview of a selected building shown over the building slot where ur mouse hovers

[delicate mural]

And then do whatever you need to do to do the thing you said