The evaluation version of FlashFXP provides all features without limitations, there is however a 30-day trial period after which a license must be purchased.
You can do this by:
- Right-clicking the item in the queue window and selecting Edit.
- From the Properties dialog, change Synchronization to "One way with Delete" and Click the OK button.
- You'll then want to save queue to a file so that the next time the queue file is loaded these settings are already set.