It seems impossible to disable multiple selection via CTRL + click, however it is possible to disable box selection via SHIFT + click by setting boxSelectionEnabled: false, see https://js.cytoscape.org/#core/initialisation.
However, as we now have different colors for the source and target node, I'm not sure if we still need to disable it as it could also be useful for letting users rearrange the graph, so I am closing this issue.
It seems impossible to disable multiple selection via CTRL + click, however it is possible to disable box selection via SHIFT + click by setting
boxSelectionEnabled: false, see https://js.cytoscape.org/#core/initialisation.However, as we now have different colors for the source and target node, I'm not sure if we still need to disable it as it could also be useful for letting users rearrange the graph, so I am closing this issue.