Beginner problems

I have a large website I am in process of moving from one host to another.
Each month or so I overwrite 20,000 - 30,000 files.
I obviously need to be able to do it without confirming each file overwrite.

I am sure it is simple but I cannot find it

Q: How to automatically use the file exist rules instead of the showing the file exist dialogs?
A: Go to the favorite settings. menu: Favorites -> Edit Favorites. Locate your favorite. Right-click on it then select Properties from the context menu. Then go to the Transfer -> File Exist dialog. Set the first option to Use Automatic Rules.
If you want to change the default behavior change the option in the default favorite: Go to the menu: Tools -> Settings. Then in the General -> Favorites dialog click on Edit button in the Default Favorite section.