#138 organize popup menu items

[molvisions]

Tim,

I have been thinking about your 'next step'.

I have a task that I would appreciate your help on.

We need a rationalized/organized method of organizing the menu
hierarchy.

That is, what should the menu structure look like?

My attempt is with the popup menu. But there are a lot of things
that are missing from there. For example, 'color', 'biomolecular
shapes', ...

I think it would be good to expose these things through the menus
because then more people will recognize how much power is in the
scripting language.