First thing to do it MAKE A COPY OF YOUR .mlt PROJECT FILE.
Then set markers where you want to section your file for multiple exports.
Then export each area between markers - it is quite simple. See here:
First thing to do it MAKE A COPY OF YOUR .mlt PROJECT FILE.
Then set markers where you want to section your file for multiple exports.
Then export each area between markers - it is quite simple. See here: