Automatic track numbers and titles

[Pathologic]

There are some albums without cue and files metadata. So track numbers are not shown in the playlist. It would be nice to set numbers for these tracks automatically. Something like:

for($i = 1; $i <= $tracksCount; $i++) {
    //set $i as track number
}

Setting "unknown artist' and "unknown album" seems to be a good idea as well: