I think you misinterpreted the words used, plus you are missing at least one key word. If referring to a form other than the one that the code or expression is on, you can't use Me. Regardless, the following syntax should work for when it is and is not the same form:
Forms!MainFormName!SubformControlName.Form. then the property, method or object after the last period/dot that I wrote. You cannot eliminate or change the bold words using that syntax.
e.g.
Code:
Forms!MainFormName!SubFormControlName.Form.Recordset.MoveFirst
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.