Third part menu control to replace menu system

[Eduardo-]

I have only the items menu needed. Other choice would be split the menu items between two forms. But that won't be elegant

I don't know what your program is about, but perhaps having one or two listboxes (or comboboxes) where the user need to select what he wants to work with.

You could think of a design where there are only a few options visible at the same time, in the menus, in the form (or forms) there should be only a few options to select. Once something is selected you can show another list to narrow down the selection.