@Sermgodts Awesome! Our team is actively working on the development of this feature. No formal ETA at this point, but as soon as it’s available I’ll let you know 
Topic summary
Main issue: Automate creating navigation menu items from tags/product types/collections without manual entry.
Platform status: Shopify offers no Navigation API; menu items must be created via Online Store > Navigation. Storefront API can read menus by handle but cannot create/edit. No supported export/import of menus via API between stores.
Pain points: Stores with hundreds of collections (e.g., 350–500) find manual setup impractical. Developers request API access; concern that complex megamenus are time‑consuming and fragile. Best‑practice advice given to reduce menu depth and use filters (Shopify Search & Discovery app).
Third‑party development: Helium’s Meteor Mega Menus released a feature to auto‑populate megamenus with products from specified collections. Available on all plans; must be enabled per collection; can import existing Shopify navigation into the app. Limit of 50 products per collection (performance/usability reasons). Users requested higher limits (e.g., 99); team may consider based on demand. A screencast demo was shared.
Current state: No native Shopify API solution. Partial workaround via the Helium app. A new question on programmatically adding menu items from an app remains unanswered; discussion ongoing.