Tools: When you click "setting" button, you can see three items in it.

 

In the general setting, you can do follows:

 

Choose the language you use during converting the videos;

Choose the Snapshot Folder and Temp Directory

Select the Default Format you need.

 

In the processing, you can do follows:

Select the Customize CPU core number, 1 or 2

You can choose wether you use GPU encoding or not.

 

You can also customise profile and open output directory with the setting button.