when we load two subtitle, we will see both of them in translator tab. when selecting a subtitle in first subtitle for example no. 50, the same number in second subtitle will be selected. i think it's good to add a "Link" button, when it's active the function will be same as now, but when it's inactive, we can select different subtitles from first and second.
now we can have another button named "add new synchronization point". by clicking on this button a new synchronization point will be created in "Editor Function --> Resynchronization tab" and the start time of second subtitle will be set as new start of selected first subtitle!
"Subtitle Creator 2.2" have the same feature for synchronization!
this will fasten the synchronization of subtitles in different languages. think of doing this procedure manually will consume too much time!