How to set requestLegacyExternalStorage = true

I using External Storage plugin tworks fine with android <=9, but on android 10 was introduced scopped storage that dosent allow dirrect acesss to files. But i saw that i can read files directlly if set requestLegacyExternalStorage to true. How i can do it? @Scott_Harrison help please

See docs, almost every api has a shouldLookAtRoot param that searches from root of the phone for files