Import from Last Used Group and Layer Settings refers to resetting the Group and Layer Settings to the ones you have used last time.
Import from .idea refers to importing the group and layer settings from the idea file.
Import from Local Disk refers to importing the group and layer settings from the local disk.
Clear Group and Layer Settings refers to deleting all groups and layer settings which you are importing before.
Export to Local Disk refers to exporting the group and layer settings to the local disk.
Figure 1: Import and export group and layer settings.
-END-
