Update macro-blocks.md

src/content/docs/advanced-interface/macro-blocks.md

@@ -1,13 +1,49 @@
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 title: Macro Blocks
-description: A guide about how to use a graph editor
+description: How to create and share Macro Blocks
 sidebar:
     order: 3
 ---
 
-Guides lead a user through a specific task they want to accomplish, often with a sequence of steps.
-Writing a good guide requires thinking about what your users are trying to do.
+A Macro Block is a node you can create yourself from any set of nodes.
 
-## Further reading
+It allows you to abstract complex logic into a selected subset of parameters.
 
-- Read [about how-to guides](https://diataxis.fr/how-to-guides/) in the Diátaxis framework
+Macro blocks are stored in your browser and can furthermore be stored remotely and shared with other users. They are also shared with Selenite Simple, even if only stored locally.
+
+## Creating a macro block
+First mark the inputs and outputs you want to expose by rightclicking them.
+Then select the nodes you want to abstract in a macro block, or select none if you want to include all blocks.
+
+Finally, you can enter the final step of the creation of a Macro block with the 'Create macro block' button. It will open a modal in which you can change properties like description or inouts / outputs names.
+
+### Properties
+The following properties are available when creating or updating a macro block.
+
+#### Name
+#### Description 
+#### Tags
+#### Public
+#### Favorite 
+#### Path
+
+## Updating a macro block
+Updating a macro block is accomplished with a process very similar to creation. Two macro blocks are considered the same when they share the same path, name and author. Therefore, if you want to update a macro block, make sure those properties are identical.
+
+## Sharing macro blocks
+Macroblocs can be shared between users. This unleashes the potential to create a substantial library of components to share with your team or company.
+
+### Data sources
+Data sources are storages where the macro blocks can be stored. At the moment, these data sources are supported:
+
+#### GitHub
+Macro blocks can be stored in a GitHub repository.
+
+Note that an access token is required to access private repositories or write changes to repositories.
+
+We recommend to generate a Fine Grained Access Token which can only access and write to the repositories you want to use for macro block storage.
+
+##### Fine grained access token (FAT)
+A Fine Grained Access Tokens is a token with limited access rights. It makes sure Selenite can only do what you want it to do (ie. write macro blocks).
+
+The access token you provide to Selenite will be kept safely in the browser, it won't be sent to a remote server.