Complete newbie here

Made my first (and simple) DB via AppGini and pretty proud about the result so far

I have two questions, and I wonder if any one could help on this.
1/ When I want to add a new record in de detail view, a field which I called "time_reg" automatically fills out the current timestamp. (ex 00:00:00). Yet I would like this field to be empty when I add a new record, so I am able to fill out the time myself in a 00:00 format and avoid mistakes. My tabel is called "t_basis". I've looked in AppGini itself, because I thought this would be easy to fix, but I didn't found it yet.
2/ I've imported a list of ports via csv in a separate table. This actually works fine when I add new records. Yet I notice that the symbols in names (è, ñ, à , é,... etc) are changed into question marks (?) and stuff. I guess this has something to do with the language settings. I have been searching on this (even via phpmyadmin) but I don't really seem to get in done. It gives problems when I do a search. Don't want to change the symbols manually neither, since this list has more then 16000 records...
Thank you very much for your help !