Help with sorting my bundles/Variant selections out please.

[ShaneoDunco]

Hello, I am currently using katching bundles, although the first picture is my current bundle layout and the 2nd picture is the one I'm currently looking at changing to, the problem is I'm not sure what type of app the other website is using, it allows me to have all the types in 1 drop down instead of having 2 drop downs for each variant, it also says when the variant is out of stock or is unavailable and dims the wording so you cant select it.

can anyone help me try solve this problem or give suggestions of apps/codeing

Current one:

one I want to switch to: