Using web interface only, how to upload folders or directories – this feature seems not available

Looks like it is not possible yet. But no need for anyone to get angry or upset about it, it’s not possible on Github either.

Please also note, anyone who is coding a project concentrates on the most important features first. Opening an issue doesn’t necessarily mean it will get implemented. This is why it’s usually good for people to vote on the issue or post that they also want it so that Gitlab can see that a lot of people are interested in it. So far only 9 people did it on that issue that was raised ages ago. If more people would have given the thumbs up for that issue may have seen it integrated a lot quicker.