> ## Documentation Index > Fetch the complete documentation index at: https://dripart-codex-simplify-get-started.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Node settings and inputs > Learn which values you can change inside a ComfyUI node and when a value comes from another node. A node has controls you can change, such as a prompt, image size, or number of generation steps. These values are often called **settings**, **parameters**, or **properties**. You do not need to learn those names before running a [template](/interface/features/template). Node settings ## Change a setting inside a node Find the field in the node, enter a value, and run the workflow again. For example, a text input holds your prompt. A **Load Checkpoint** node has a selector for a local model file. A **KSampler** node has settings such as steps and sampling method. ## When a value comes from another node Some controls can instead receive their value through a connection. In that case, follow the line to the node that supplies the input and change it there. The connection points are often called **ports** or **slots**. See [Links](/basic-concepts/links) for how connections work. Connections accept specific kinds of data. An image output, for example, cannot feed a number input. If two ports will not connect, check their input and output labels and types. For a simpler introduction to the whole canvas, start with [How ComfyUI works](/get_started/how-comfyui-works).