Hi,
Some other suggestion for the graph builder.
1- Enable copy/paste of operators.
In many cases, a chain contains duplicated operators (subset, resample, etc.). It would be nice if, after selecting an operator such as subset, we could directly copy-paste it instead of Right click -> Raster -> Geometric ->Subset
2- Enable zoom options in the graph
When creating long processing chains, it would be better to zoom out and check the process instead of using the scrolling bars (top-down / right-left). Maybe automatic buttons that zoom to the extent of the graph? (something like the zoom to layer)
3- Enable selection of several operators
it would be nice to be able to select different operators at the same time, so that you can move them together
4- Search box
Most of the times we know already the name of the operator we want. If there would be a search box, we could type some letters of the operator and it would appear on a list. By clicking (or pressing enter), it would be added to the graph.