Algorithms are added to the graphical modeler in the same way as inputs. Find the algorithm from the Algorithms tab, and either double-click on it or drag it on to the modeler canvas. You can search for tools as you would in the Processing Toolbox. Type the name into the search box at the top of the Algorithms tab:
You can see the Algorithms tab with buffer being used as the search term.
The algorithm dialog will look very similar to how it would if you were running it from the Processing Toolbox. There are inputs, tool parameters, and outputs. However, there are some important differences because the graphical ...
