Transfer multiple directories

First off, I love this App, AirDroid is amazingly useful.
Therefore I would like to ask if you would consider adding the ability to transfer multiple directories to the Android device.

That would make life so much easier.

Thanks

So the feature addition that I am suggesting is that when your inside a directory, you would hold the shift or control key and you can select more than 1 directory to be uploaded.
The current workaround, is to select a directory and upload this. Then whilst this is uploading, you select 1 more directory manually.

Obviously, this is extremely tedious, and a bit annoying.

it seems this is a general problem that has not been tackled,I t will be nice to allow multiple select when uploading files and secondly the folder tab is greyed out on my mac.
can someone offer any help?