To ignore a file or a complete folder from deletion in the synchronisation process is a piece of cake using Lite Sync's new, easy to use, user interface.
All you need to do to exclude a file from deletion in the synchronisation process is to click in the 'Pick' box in a new row in the list and you will be prompted to chose the file that you would like to be ignored from being deleted in the synchronisation process.
The process of ignoring a folder from deletion in the synchronisation process is exactly the same just click on the 'Pick' button in a new row and you will be prompted to select the folder that you would like to be excluded from the process.
If you would like to change the file or folder name that has been chosen you can simply click the 'Pick' box next to that file or folders name and you will be prompted to select a new one.
Similarly if you would like to remove an exclusion from the list all you need to do is click in the box on the far left side of the row to select the row and then press the delete key on the keyboard. On deleting a row you will be prompted by a message box to check that you are certain that you want to remove the file or folder from the list.