I want to add one more suggestion about export.
There is another issue. For any new project, when try to export the 1st time, it use last project's export path which is almost always undesired and far away from the current project directory. Default to local project folder (./) would be much better. At least it won't export to other project's output directory by accident and I believe most user generally just want to export somewhere under the project folder. e.g. ./export, ./videos or ./output. The step to browse back to the project folder can be avoided if not default to last used path.
Thanks