Since you mention " advanced user to code custom requirement", it would be straightforward for you to make a simple JavaScript or Python script to do it for you offline.

The EA Studio collections are ordinary JSON files.

Here is a trick to preview it.
- Download a colelction in your computer.
- Then drag-drop it over the browser.
- Check "pretty-print" option.

You see all the Backtest stats values listed there.

You can use ChatGPT, Grok, or other to help you with the script.

I've seen traders create a complete review system for their collections

I would like to optimize for other things like the default ones in the optimizers. Is it doable to ajust the code for that?
An example would be to optimize for a specific win rate percentage ond only that. Or add other custom optimize goals.

is the Generate Best For and Optimize best for Goal accessable for a advanced user to code custom requirement?

how would one have to proceed to generate lots  of eas with WinLoss 30% or 50% hit rate. without having to look in the last pages of the collection after generated them?