Common questions about Magic File Renamer 8. Also see Tips.
Yes. Select a Filter Chain step, open its Filter Options, and set Apply To to the extension target (or include the extension in a multi-target apply). See Filter Options.
GO commits what Preview shows. If Auto-Preview is on, the Rename List New columns update as you edit the Filter Chain. Fix Preview first (or use console --dry-run for a no-write run). See Apply Changes and Rename List Preview.
Undo Last prepares a reverse preview of the last GO; disk is unchanged until you press GO again. Older operations may still be listed in the Rename Log. See Undo Last.
Presets are JSON under your AppData finebytes MFR folder (not MFR 7 .mps files). Manage them from the Preset Manager. See Preset Manager and Save Preset.
Not automatically. MFR 8 uses a different preset format. Rebuild Filter Chains in MFR 8 (or recreate them from the filter list) and save new presets. For renamed UI terms and filters, see Migrating from MFR 7.
Preferences live in config.json under %AppData%\finebytes\mfr\. See Options and Reset configuration.
Use the console entry point with a saved preset. See Console Mode. Prefer --dry-run until the preview looks right.
Yes — after a Setup install (or after enabling it in Options), right-click a file or folder and choose Rename with MFR 8. That opens the desktop app and puts the selected items on the Rename List. Selecting several items opens one window with all of them.
Press F1 or choose Help → Index. Help → Tips opens tips. Filter Configuration ? opens that filter’s topic. Pages open in your default browser.
Still stuck? See Technical Support, Feedback & Contact Information.