How do I make a nested list selection interface with corresponding sub-form selectivity?

In Microsoft Access 2013, I have a master form with a drop down list of object class types (part numbers, document numbers, change numbers, suppliers, supplier part numbers, quotes, etc...).

When I select from that master form drop down, I want 2 things to happen:
1) I want a list to populate displaying a filtered list of items and descriptions available in my table with that object class type (all part numbers, all manufacturers, all quotes, etc...)
2) I want a relevant sub-form to appear with fields relevant to that class type (quotes would show a quote number, quote date, cost, and other quotation relevant info. Part numbers would show a part description, part image, part manufacturer name, and other part relevant information.

After the list of specific items (part numbers, document numbers, etc...) appears, I want the user to be able to select a specific item (part #, quote #, etc...) from that list, then I want to display the specific details in the object class dependent sub-form for that item.

How do I do this? I can't seem to find a way to display different sub-form designs based on a drop down selection. I wonder if I should be using/changing displayed sub-forms based on a parent form list box selection, or perhaps I should just be displaying multiple main forms side by side somehow... Thanks for any help on this. I can't seem to find any guides covering this level of form configuration.

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Reply from Alex Hedley:

Hi John,
You can have events running on the AfterUpdate of a Combo which will then set the RecordSource of a Form. Or just set the RecordSource to be a Query that uses a Parameter as it's criteria, that parameter being the value of the Combo.

If you start with a simple cascading combo

See how you get on with that then we can build up a Form and SubForm example