In your process list, you may have seen that there are different types of processes.
Processes can be of three types:
Individual flows
Custom processes
Bundles
Individual flows
Individual flows represent a cycle in the database (somebody else keeps that data up to date).
You can edit the amount of input the parent process uses. However, you can only view their information tab without enabling you to add processes or emissions to them.
For example an Ecoinvent process or a cycle created by another user.
Custom processes
They represent a “process inside your process”.
You can edit here the input amount for the selected process. Inside that process, you will also be able to edit the input amounts of other processes or emissions for a given unit of this process.
They help you represent your model's complexity. After all, products are made of parts; companies are made of departments. You can edit them easily while staying inside the cycle so that all your information about the product remains in one place.
Bundles
They represent just a group of process inputs, only to keep your cycle tidy. You can think of them as folders. They do not (normally) represent anything in the physical world.
They have no units or value. When you see them in a list, instead of the usual editable input, you see a preview of what is inside that bundle when it is possible.
If all elements inside the bundle have the same units, you will see the total sum of those elements.
If they have different units, it will show you "Multiple units."
Dynamic bundles ("All Others")
On the diagram, you may also see an additional type of bundles, labeled "All other". These are created on the fly by the diagram, to help you focus on the most important processes. Anything under a threshold will be bundled together before being displayed.
Those bundles do not show in the drawer and are only for representation. When you click on them, you will open the drawer of their parent instead.
You can control the sensitivity of those bundles with the threshold control on the top-left of the diagram. Lower the threshold to display processes with smaller impacts.