Currently, submenus are closed by automatic closing when the mouse cursor is on another menu.
It would be interesting to have a feature that allows for the submenu to remain open independently from the cursor, when clicking on the parent submenu.
Use case
1- Right-click open contextual menu (current behaviour)

2- The mouse cursor moves to a menu, that opens its sub menus (current behaviour)

3- Left-click on the menu, lock the sub menu open (new feature)

4- The mouse cursor moves to another menu, the previous sub menu remains open (new feature)

Currently, submenus are closed by automatic closing when the mouse cursor is on another menu.
It would be interesting to have a feature that allows for the submenu to remain open independently from the cursor, when clicking on the parent submenu.
Use case

1- Right-click open contextual menu (current behaviour)
2- The mouse cursor moves to a menu, that opens its sub menus (current behaviour)

3- Left-click on the menu, lock the sub menu open (new feature)

4- The mouse cursor moves to another menu, the previous sub menu remains open (new feature)
