It is impossible to change any option and/or preset to any of the files after they have already been imported. If you change anything, click another file and then back again, you see that it has changed right back to what it was before. At least all fields could be grayed out, unchangeable, then it would be less confusing.
With the only seemingly exception being the Use Source Folder option, which by the way is unaffected by the Enable Multiple Presets in File List option in the WinFF Preferences.
This also makes the Enable Multiple Presets in File List option practically useless, I guess.
WinFF V1.54
OS Name Microsoft Windows 10 Home
Version 10.0.10586 Build 10586
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name SYSTEMNAME
System Manufacturer ASUSTeK COMPUTER INC.
System Model X550ZE
System Type x64-based PC
System SKU ASUS-NotebookSKU
Processor AMD FX-7600P Radeon R7, 12 Compute Cores 4C+8G, 2700 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 204, 2014-11-20
SMBIOS Version 2.8
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer ASUSTeK COMPUTER INC.
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.10586.0"
Username SYSTEMNAME\Username
Time Zone W. Europe Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 6.95 GB
Available Physical Memory 3.69 GB
Total Virtual Memory 18.9 GB
Available Virtual Memory 13.0 GB
Page File Space 12.0 GB
Page File D:\pagefile.sys
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualisation Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes