Look for a userform that can be entered in a vertical way, not horizontally
What is required is a form by which data can be entered on any column, but provided that the entry is on the specified column horizontally, for example, column D is entered in D1, then D2, then D3 and so on.
What is required is a form by which data can be entered on any column, but provided that the entry is on the specified column horizontally, for example, column D is entered in D1, then D2, then D3 and so on.