I think you need the entry method for the acrosses (13 letters, an archaism from Greek) the down answers are entered normally in the order given.
I've seen at least a couple of crosswords over the years using the same entry method seen here.
Well, hello again. You are all so clever. I will try again with some more clues as I am having a hard time today. First down might help me
Store opening to women engaged by firm (5)
And an across please
Margins kept going down in crosswords(4)