Header and Footer Selection inside of the Gutenberg Editor

I was used BeTheme before I met Gutenberg (and Nexter Blocks of course) and the only missing feature I miss is header and footer selection inside of the Gutenberg editor. It's quite hard to add condition for everypage. I design different landing page for ads and everytime i need to edit contitions for ad pages. Going to global header, exclude the page, save, go back to theme builder, editing ad page header, include the ad page, save etc. etc. I believe this one save so much time.

Attached images