First of all, thanks @Cesar82 for the wonderful tool.
Just thought i'dd report a little GUI bug, in the predefined compression method window,
the scrollbar does not really scroll. There is only a top of the list or bottom of the list option. This causes some of the options (predefined method new [20]), not to be visible, unless the users selects an option, and uses the arrow keys to scroll up/down.
just to visualize:
https://uptostream.com/a44if9kbpedu