Wow. Thanks for your help.
I didn't' noticed that problem.

I will fix this problem until release next version of Bandizip.

thx

You can do that with bandizip 3.0 beta

http://www.bandicam.com/bandizip/beta/

1. Select multiple files with explorer
2. Then click right button and select "Add to archive (bandizip)"
3. You have to check "Compress to each file/folder name"

Zipx format has many compression algorithms.
But, Bandizip does not support some of them yet.

We will try to support the whole zipx compression algorithms in the future.