On your 1st device (source)
(1) Make sure to link your dropbox account to Doctor At Work. Please refer to this link for the guide.
(2) Then create a backup. Please refer to this link for the guide.
Then from your 2nd device (destination):
(1) Link your dropbox account to Doctor At Work.
(2) Then restore the newly created backup. Choose the topmost file to restore the lastest backup. Please to refer to this link for the guide.
Linking your Dropbox Account