Can I personalize different limits to my plastic and virtual cards?

Yes. You can control each one limit for both cards separately in the app. This way, for example, you can keep a usage limit of US$4,000 to your plastic card and of US$6,000 to the virtual card. 

Just go to "Cards" > "Card you want to set the limit for" > "Daily Purchase Limit".

Remember that both cards limits are shared, being the sum of the two cards limits of US$ 10,000/day, US$ 30,000/month e US$ 100,00/year.