Put video into the timeline, highlight the end of video hit Alt+]

Here is the fix for GH4 and Sony Vegas

https://suggestionofmotion.com/blog/sony-vegas-pro-panasonic-gh4-compatibility/

Script: https://drive.google.com/file/d/0B6uTBvu2vGGXbVVhaVZXNkFtREE/edit

You might want to try the new Vegas and save the brother really.

http://www.vegascreativesoftware.com/gb/vegas-pro/product-comparison/