It is possible in DataDynamic to both:
a) manually add labels
b) copy the label-set of one variable to other variables
c) import a complete set of labels from an external file (.txt file).
a) To manually add labels to a variable, in Editor Mode double click over the variable. On the right part of the window, next to the 'Label' box, clicking on the top button will add a row in the box, where you can fill in the code (category) and the label. When all the desired categories are added click on 'Update'.
b) To copy the label-set of one variable to other variables, in Editor Mode first select the variables in the variable list, making sure that the variable you want the label-set copied from is selected last. Then right-mouse-click and select 'Copy selected variable labels'. A popup will appear asking you to confirm.
c) To import a complete set of labels from an external file (.txt file with the following format) start as described in a) but rather than clicking on the top button click on the 'folder' button, which will allow you to browse amongst your files and select the one containing the code+labels set.
You can follow the steps described above by checking the video on our Youtube channel: