Feature summary (what you would like to be able to do and where):
It will be very useful if we can have in the url a new parameter to pass a Commons Category in which the video will be uploaded.
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):
Currently, the user has to define what is the category to be used when uploading the video but for users who are not familiar with Commons Categories it will be very useful to have a URL that contains a pre-defined category and communicate this url to upload videos and so the user won't have to input the category manually.
Benefits (why should this be implemented?):
This can help to set up Video campaigns on Commons very easily