Make it possible to add a custom React Native / React web plugin via a GitHub repository, so that the plugin also tells Composer the view components / flow functions / required build service settings it provides.

Provide the necessary flow functions to get the device token for sending push notifications that can be uploaded to a custom backend, as well as Build Service options to configure the built app binary to receive push notifications.

I should be able to add a web-only component that embeds and evaluates arbitrary HTML code wherever I place it on the page (with big notifications about the possible security implications, especially if the HTML content is loaded dynamically).

Possibility to create local notifications. For example a similar notification every day at a given time.

Flow functions that would implement 3rd party auth tools (Facebook Google, etc).

Allow custom domain names (e.g. www.myapp.com ) to be set up for app deployments via the Build Service, including SSL certificate setup.

Navigation customization is very low. I would: Hide header bar on some specific page Hide the first page from navigation Insert an avatar on the header

The upcoming navigation configurator will give users full control over navigation, from full styling of the autogenerated navigation elements to defining things like soft tabs on the page level, as well as customizing navigation individually for different form factors and devices.

Provide option for Firebase for items like auth/firestore/notifications/etc.

Proposing the following new formula functions that make it easier to work with lists (arrays) of items: INSERT_ITEM_AT(array: Array<X>, index: Number, newItem: X) => Array<X> Return a copy of the array where a new item is inserted at the given index, pushing any following items to greater indexes. INSERT_ITEMS_AT(array: Array<X>, index: Number, newItems: Array<X>) => Array<X> Return a copy of the array where multiple new items are inserted at the given index, pushing any following items to greater indexes. REMOVE_AT(array: Array<X>, index: Number, removeCount: Number = 1) => Array<X> Returns an array where an item at the given index is removed. If removeCount parameter is provided, returns that many items starting at the index. The removeCount parameter defaults to 1. SET_ITEM_AT<item, index>(array: Array<X>, index: Number, setterFormula: X) => Array<X> Returns an array where an item at the given index is replaced with another value. If the array is shorter than the given index, then its length is increased, filling the new indexes with undefined values. SPLICE(array: Array<X>, index: Number, removeCount: Number, newItems: Array<X>) => Array<X> Similarly to JavaScript's splice method, removes the given number of items from an array at the given index, and then adds the given items there. This is a shortcut for combining REMOVE_AT and INSERT_ITEMS_AT. FLATTEN(array: Array<Array<X>>) => Array<X> Takes an array of arrays and concatenates each of those arrays together, returning a flattened array. FLAT_MAP(array: Array<X>, mapFormula: Array<Y>) => Array<Y> Returns an array where each item is mapped to an array of new items, and all those arrays are concatenated together. Equivalent for combining MAP and FLATTEN. FIRST_ITEM(array: Array<X>) => X Returns the first item in the given array (or undefined if the array is empty) LAST_ITEM(array: Array<X>) => X Returns the last item in the given array (or undefined if the array is empty)