Sure! Set up your combobox using the wizard and include the fields you need,
from Left-to-Right.
If in the Combobox they appear as
Field1 Field2 Field3
then the code would be
Private Sub YourComboBoxName_AfterUpdate()
Me.txtField1 = Me.YourComboBoxName.Column(0)
Me.txtField2 = Me.YourComboBoxName.Column(1)
Me.txtField3= Me.YourComboBoxName.Column(2)
End Sub
Notice that the column index is zero based.