Transfer Data From Table Or Query To Second Table

See example below:

Let's say that there're 2 workers: Worker A, and Worker B, and they are fixing some engines. There's 2 different engines:

Engine A, and Engine B. And these workers are fixing these engines for all day, and in the evening they have to register how many engines they've fixed.

And my job is to design Access database for them. I thought it will be very easy to do; I've created table with columns: Date, Worker, Engine, Quantity - so every day Worker A and Worker B can register, that they have repaired some amount of Engines A and Engines B.

But there's a problem that I also have to register how many Engines have arrived to the factory, and how many of them weren't repaired on time (E.g. 15 Engines A have arrived, Worker A fixed 5, Worker B fixed 5 so there's 5 engines left for tomorrow).

I've figured out that I should somehow create table IncomingEngines with columns Date, Engine, Incoming, Fixed, Undone (field Fixed should be completed automatically every day for every engine - it would be a sum of engines A and engines B fixed by worked A and worker B - so I could fill Incoming field manually)

It's easy to create this kind-of Query, but I can't add column to query, or edit it.