For this test I was using 1.2, so you should be okay.
If you want to have Decipher learn the selected dropdown you can set it as a virtual field, which involves selecting the flags Assignable, Virtual an Unique. There were some improvements made to this feature in v2.1, so it might be worth looking into it.
This will store the selected value in the training data and link it to the layout of the document. If you don't want to link the selection to the layout, this wouldn't be the right option.
Thanks
Ben
Ben Lyons
Principal Product Specialist - Decipher
SS&C Blue Prism
UK based