I see, my apologies, I must not have looked at the list view close enough… but I was mainly interested in the grid view showing certain fields. I understand now why it would break the layout, if a user had not filled out a field.
In this project it is important for users to be able to see certain fields quickly or better yet, search for or filter users by certain fields.
Is it possible to add an advanced search/filter to the users page in order to filter users by custom fields?