Feature summary (what you would like to be able to do and where):
When voting in an STV election, it would be great to have the options on the left and for the voter to drag these options over to the right in order to rank and vote for them.

At the moment voting looks like this. It is not clear to the voter that additional options can be selected:

Ideally it would look more like this:

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):

At the moment it is not particularly intuitive that one can vote for multiple candidates in these elections. The dropdown remained filled with the previously-selected option, and just spawns a box below it - it's not clear that box is movable or intended to be the final vote for the user.

Benefits (why should this be implemented?):

I believe an implementation more like this would make it more clear to voters that they must "rank" those they wish to vote for, and that those rankings can be moved around into the desired order.