Cancel upload button

**Describe the idea / solution you'd like**
A cancel upload button.
I have started uploading a couple zip files to a folder which then I realized it was the wrong folder, I now wanted to cancel the uploads and use the correct folder, but for the love of god, I could not find a cancel button, am I stupid / blind (perhaps both?)?

**Describe any alternatives you've considered**
None, a cancel button is somewhat essential.

**Additional context**
Or, given by the existence of this issue, make the cancel button more obvious.

I would imagine something like this:

"CANCEL ALL" is self explanatory.

But, for ease of use, put an "X" symbol next to each uploading file (either on the right, in the middle or on the left, I don't care) with an additional "X" in the yellow-marked area for an alternative "CANCEL ALL" method.

Interested in seeing your thoughts on that.