Scale component, from a list

I have a cupola model that I would like to have 3 size options - 2x2, 3x3, and 4x4. I know how to make it component, and how to set the behavior for the scale tool, but can I set it so that the scale can be chosen from a list like you would for a length? Currently, it is roughly 2x2. I would scale it by 1.5 to get 3x3, and scale it by 2 to get 4x4…
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image Dynamic Cupola.skp (132.6 KB)

Maybe something like this would work for you? I set a custom attribute I called Size and made it so that users can select from a list. Then I added values for the sizes.
Screenshot - 10_8_2020 , 1_38_30 PM

For the LenX and LenY attributes, I used the value from the list. The user only sees 2x2, 3x3, or 4x4 as options.

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Thanks! Works well.

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