I want to render video in .mov format but all the presets in Premiere Elements 10 are set to 720x480 frame and in Advanced settings I am not allowed to increase frame size. And I cannot find any way to create my own QuickTime preset there. Is there any fix for this? What's the use of a low quality output like 720x480 anyway?
You are using a very old version of Premiere Elements with a very limited number of MOV output options.
Since version 11, the number of Quicktime output options, resolutions and codecs available has greatly increased.