if you want to delete several reports from a user-created-folder, you have to right-click on a report, follow the confirmation dialog, and (then the list of reports shifts so you have to) scroll down to see the list again.
for each report, you have to repeat the time consuming process above.
report management should be modernized with use of widely known windows tools such as CTRL-click and SHIFT-click to select multiple reports, and use of the DELETE button.