How Can I Hide Some Sub-Menu Items Without Creating a New Menu?

I have created a menu that includes 5 sub-menu items. However, in some cases, I only want to display 3 of these sub-menu items. Instead of generating an entirely new menu, I’m wondering if there’s a flag or parameter that allows me to control which sub-menu items are displayed.

What I’ve Tried:

I attempted to toggle the visibility of individual sub-menu items using the available display properties, but this approach didn’t work as expected—the hidden items still occupied space or interfered with the layout.
I also explored creating a conditional structure within the menu definition to exclude certain items, but this resulted in a less maintainable and more complex code structure.

Questions:

Is there a built-in flag or method in the UI framework to selectively hide or show specific sub-menu items?
If not, what would be the best practice for dynamically managing the visibility of sub-menu items without duplicating the menu code?

Any insights, examples, or alternative approaches would be greatly appreciated.

Solution

Menu objects in DM do not have "flag" properties that determine whether menu items are visible. A better way to think of a Menu object is as a globally accessible resource that can be dynamically altered in response to events that occur within the DM app. In other words, when conditions are such that you want the sub-menu visibility to change (which you must detect either via an event or some test done by a periodically executed script), then you need to get a reference to the affected menu object and add the desired sub-menus via the AddMenuItem method or remove them via the RemoveMenuItem method.

Another approach is to simply disable the sub-menus by using the SetIsEnabled method on them. Although this does not remove the sub-menus, it does gray them out and prevents any code connected to them from being triggered through user actions.

Details about the script interface to DM's menus are provided in the on-line help at the path Scripting > Objects > Menus.