G'day Ashley,
Export is one terminology = the end process to have a final "export" via Media Encoder to get a single finished video file.
When doing this process the last settings used should be recalled when exporting again. Good Idea to save any customization you make so if you export to another setting you can recall it back.
You can also make a preset folder in Media Encoder and just drag it on to the sequence before exporting.
Render (for Preview in PPro) = the process whereby you want to watch back, AKA preview, effects heavy clip/s in the timeline to get realtime playback. The render format for preview is by default set to MPEG-2, but it can be changed in the Sequecnce Settings to a multitude of formats such as Uncompressed or P2, etc... ProRes on Mac if installed.
If you want to make your own custom preset sequence to have a specific preview render format from the start of an edit then you can create a custom sequence at the New Sequence settings Tabs, just set it up across the tabs at that point and save preset. It will then live in the Preset list under custom.
The Render Preview process when using a high end system is almost never required. The FCP approach of rendering as you work is unnecessary for final export and wastes much time.
Once editors actually play the timeline (even when the timeline is red) and see the performance is fine the time it would take to render is left by the wayside and turn around times are decreased = faster out the door.
Hope this helps.
Cheers JB
Jon Barrie
Adobe Video Solutions Consultant ANZ
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