Microstation CONNECT Ribbon Customization - Can't move items

I am currently using Microstation CONNECT 17.2, but I've experienced this issue with previous versions of CONNECT. I've also used OpenRoads Designer 2021 R1 - 2022 R3.

I have created a customized ribbon in order to reproduce barmenus that were developed and used in Microstation v8i. In order to migrate the menus (.mdf files) a new ribbon tab was created in a new .dgnlib. Next, I created 3 Tool Group panels with drop-down menus. This allows me to switch the menus shown in each of the groups. In the group that contains the actual tool menus, I created the tool buttons using the New Menu Item. The tool contains a title for the tool and a keyin that is run when the item is selected.

My question is why can't these tools be moved out of their sub-menus they were created in? 

ex. If I want to move Bridge Parapet out of Existing Bridge and into Proposed Bridge I am not able to perform that operation. 

Also, if I want to create a new menu and reuse Bridge Parapet I am not able to select it from the "Choose components from" column to add it to the new menu

The only difference I can find is the built in tools have a source

  

Where the custom ones show Source; Unspecified