How to display a context menu without right click?

I am currently doing a GUI in Matlab. This GUI has a lot of things, one of them is some graphics that the user can drag and drop. The objective is to be able to drag a graphic, drop it over other graphic and make an operation. But as there are more than one operation, I want that when a graphic is dropped, a context menu appear with all the possibilities. How can I do this? Because right now my context menu will open only by right clicking. Thank you

[Adam Danz]

Mario' answer moved here as a comment.

Noone knows the asnwer?

[Adam Danz]

https://www.mathworks.com/matlabcentral/answers/265261-is-it-possible-to-display-a-context-menu-without-right-click

Answer 1

[David Fuster Signes]

https://es.mathworks.com/help/matlab/ref/matlab.ui.container.contextmenu.open.html