In general, my tax consultant always lumped all my Securities/ETFS into one figure ‘Depot’ amount per each brokerage holding. No individually listed securities. So far no news from tax authorities. Though he didn’t submit my DA-1 because he didn’t think it was worth it (2k dividends).
It would be AMAZING if someone would post the step by step screens of what to do and why!
I’d also like to do the DA-1 myself next year. I deferred my taxes until Sept (as always) but will post about it when I do.