Synchronisation
When I delete a file from one of the sync folders, it is not deleted from the other sync folders, instead it is restored in the folder I deleted it from. Does Synkron support deleting the file in the other sync folders, rather than restoring it?
Is Synkron able to recognise collisions (conflicts) between files?
Yes. You just need to activate the option "Detect collisions" which you can find in the Advanced options of every Sync and Multisync tab. For more information see the documentation.
How does Synkron compare files to determine which is the newest one?
Synkron compares files just by their last modified dates.
I am syncing two folders. I don't want Synkron to copy any new files to the first folder, because the second one is a backup of the first and I want to keep there any files I want without getting them back to the first folder. How can I do this?
In the Advanced options of Synchronise and Multisync tabs there options called "Update existing files only", in the Synchronise section there are 3 and in the Multisync section there are 2 of them. The topmost one in the Synchronise section refers to all your sync folders. The second one in Synchronise and the first in Multisync refers to the first sync folder in Synchronise and the sources in Multisync. The last one refers to the second folder in Synchronise and the destination in the Multisync section.
These "Update existing files only" options forbid Synkron to copy any new files to the folder they are refering to. So if you don't want any new files to be copied into the first folder, you need to check the checkbox refering to that folder.
Temporary files
Synkron backs up files it has overwritten or deleted during synchronisations to allow you to restore them in case it has done something you didn't want it to do.
How can I restore these files?
Go to the "Restore" section (click on the "Restore" button in the toolbar), check the files you want to restore in the list and click on the "Restore" button in the bottom right part of the window.
How can I remove them?
In the "Restore" section (click on the "Restore" button in the toolbar) check the checkbox "Clean temporary files", you will see a groupbox with options to remove these files. Choose the options you want to use and click on the "Clean" buttton. For more information see the documentation.
How can I turn off backing up these files?
Activate the "Do not backup updated files" checkbox which you can find in the Advanced options. For more information see the documentation.