Problem you would like to solve
We see other tools (excalidraw, Miro, Google Sheets) use a context menu to give users a chance to uncover editor actions / customize the editor. Using the modeler I stumble upon a barebones context menu (canvas) and no context menu in other places (i.e. in the properties panel):

Proposed solution
Alternatives considered
We could instead use a command palette (#3491). However this is not a real alternative. A meaningful and working context menu is a core application too.
Additional context
No response