Update Wireless harddrive functionality

Hey Guys love the App but when i try to look at my music on my seagate hard drive i can only select one song at a time, i look forward to select as many songs as i wish and export them to either preview or delete and could you have to keep it to where i was last at when i go back to the hard drive, its a hassle to go the beginning and go to each folder again and again, ohh and a back button would be cool for when im browsing in my folders, thanks for all you do guys!