There are two ways of how to do it described here:
See also the following examples that use custom event editor configurations:
https://bryntum.com/examples/scheduler/eventeditor/
https://www.bryntum.com/examples/scheduler/eventeditor-combos/
- showResourceField:false plus your own extraItems
- Advanced: Replace entire contents using editorConfig
See also the following examples that use custom event editor configurations:
https://bryntum.com/examples/scheduler/eventeditor/
https://www.bryntum.com/examples/scheduler/eventeditor-combos/