Yes. FonePaw MacMaster can scan files in different categories simultaneously. For example, if you want to clean system caches and duplicate files, you can clean them simultaneously. Here is how to do it.
1. Open MacMaster. Select either System Junk or Duplicate Finder.
2. For example, select System Junk and click Scan.
3. While the system junk scanning is processing, go to Duplicate Finder and start finding duplicate files.
4. Now MacMaster is performing two tasks - finding the system junks and the duplicated files - at the same time.
You can select more categories to scan other kinds of unneeded files on Mac at the same time, which will speed up the cleaning of your Mac hard drive and save your time.