Hello,
I have tested the repair with the latest build (37431) and you should be capable to repair multiple files in the same session (one by one).
The current limitation is that you cannot select and repair multiple items at once, you have to select a file, repair it, select another one and repair it. We are aware of the issue, however fix of this means a rather big change in the code due to internal optimizations for a large amount of scanned files.