I use a Userform with command buttons that Unhides veryhidden sheets and then selects them by the sheet's codename so i can make edits to the sheet and then i hide them with another command button when i am done making the changes to the sheet.
But when i have (2) of the workbooks with different filenames open at once i get an the error.
Sub Show_Sheet()
BlankOptionSheet.Visible = -xlSheetVisible
BlankOptionSheet.Select
End Sub