Equate comboboxes as objects

Guys:
Consider the following code:

dim combo1 as combobox 'Empty combo
dim combo2 as combobox 'Filled up combo

i would like to have something like:

set combo1=combo2

so that combo1 inherits combo2 properties and contents! I know the code i gave means something else, but is there any code similar to that which can equate them as objects?

Thanks in advance for your comments!