In Modo you can make inactive Meshes either Wireframe or the same as the active Meshes. This usually involves going into the 3D Viewport Properties via the ‘o' key, you can assign a shortcut but what if you want a shortcut that toggles the behavior well you can do that too by using ‘?+‘ which is the toggle instruction for all boolean commands.
So in the Map to shortcut dialog use this instead of the given TRUE or FALSE...
Toy Robot Concept - Modo Marmoset Toolbag
Modo supports customisable Layouts displayed in the form of Tabs at the top of the UI.
Adding a new Layout is as easy as clicking the small + symbol on the right of the Tab pane.
Removing a Tab is a little more obtuse, it requires a few clicks in the Menus.
As the Tabs represent Layouts you go to the Layout menu and select Delete… to open the Delete Layout window....
If you want to remove an Edge and keep the vertex, you can use the UI button F2 Model Tab > Edge > Remove
You can also use right-click the edge and select remove.
It pops up a dialog box where you can check Keep Vertices
Assign it to ALT Backspace for example to make it easier to access
Retro Radio Receiver - Modo Marmoset Toolbag