First of all - DosZip Commander is great! Keep up the good work!
Selecting a single file by typing "+" and its name is a bit complicated. A common way to select is a single file in dos commanders is to press space. Would be nice to see that in one of the next version.
To select a single file you may use the Insert key, but this is,
for some reason, not mention in the documentation.
I will try to update this in the next release.
Works perfect. Thanks you!