File-Manager Horizontal dual panel

Checklist

[X] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
[X] I have read the FAQ and my problem isn't listed.
[X] I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
[X] This issue contains only one feature request.
[X] I have read and understood the contribution guidelines.

Is your feature request related to a problem? Please describe. No, isn't. This is more related to a convenience problem because some of the file managers that I used to use usually come with this feature, and it's really useful In my opinion.

Describe the solution you'd like Just like others file managers, you have two panels which you can switch between sliding your finger right or left.

Describe alternatives you've considered This is just a convenience problem, this can save me sometime doing things like pasting files into another directory, but I can do it manually anyway.

Additional context Function demonstration video. BTW, sorry if my english is bad.