@dan Thank you very much for your answer !
I already use the API sorting features, and it's great ! =D
I just have users that are not technical and that are accessing the UI to get usage statistics. Regarding the deep customization possibilities of fusionAuth, I was surprised not to be able to add/remove columns !
The feature request has been created ! Thanks for suggesting ! https://github.com/FusionAuth/fusionauth-issues/issues/2086